学生管理系统源代码

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学生管理系统c语言源代码

int main()
{
initLinkTable(&head);//初始化表头
readStu();//读入源文件
while (1)
{
menu();
system("cls");
}
}
void initLinkTable(studentLinkPoint *p)
int sum(studentLinkPoint);//求和
void avg(studentLinkPoint);//求平均分
void disAvgSum(studentLinkPoint);//显示总分和平均分
char *inputNumber();//专门用来输入一个学生的学号,返回该字符串的指针
char name[20];
char number[18];
int i;
if(temp==0)
{
error("input");
return 0;
}
else
{
temp->student=(studentPint)malloc(sizeof(studentNod));
break;
case 0:
del(head,end);
break;
}
if(c==0)
exit(1);
}
void del(studentLinkPoint p,studentLinkPoint End)
{
studentLinkPoint q;
if(end==head)
printf(" %3.1f %3.1f\n",p->student->sum,p->student->avg);

c语言学生管理系统源代码

c语言学生管理系统源代码#include <stdio.h>。

#include <stdlib.h>。

#include <string.h>。

/*定义学生结构体*/。

typedef struct student。

char num[20]; //学号。

char name[20]; //姓名。

int c; //语文成绩。

int math; //数学成绩。

float ave; //平均分。

struct student *next;。

} stu;。

/*函数声明*/。

void menu_select(); //显示菜单。

void add(); //添加学生信息。

void delete(); //删除学生信息。

void modify(); //修改学生信息。

void search(); //查询学生信息。

void get_ave(); //计算学生平均成绩。

void display(); //显示学生信息。

void esc(); //退出系统。

int main()。

menu_select();。

return 0;。

}。

//显示菜单。

void menu_select()。

int select;。

while (1)。

printf("\n学生管理系统\n");。

printf("------菜单------\n");。

printf("1.添加学生信息 2.删除学生信息\n");。

printf("3.修改学生信息 4.查询学生信息\n");。

printf("5.计算学生平均成绩 6.显示学生信息\n");。

printf("7.退出系统\n");。

printf("请输入您的选择：");。

scanf("%d", &select);。

教学管理系统java源代码_教学管理系统java源代码.doc

教学管理系统java源代码_教学管理系统java源代码.doc 教学管理系统java源代码教学管理系统java源代码篇⼀：java学⽣管理系统源代码import java.io.Serializable;public class Course implements Serializable{private String courseName;private int courseGrade;Course(){courseName=null;courseGrade=0;}public void setCourseNameValue(String ss){this.courseName=ss;}public void setCourseGradeValue(int dd){this.courseGrade=dd;}public String getCourseNameValue(){return this.courseName;}public int getCourseGradeValue(){return this.courseGrade;}public boolean equals(Object o) {if (o == null){ return false;}else {if (o instanceof Course) {Course rec = (Course) o;if (this.courseName.equals(rec.getCourseNameValue())) {return true;}}return false;}---------------------------------------------------------------------------------------------------------------import java.io.Serializable;import java.util.Arrays;import java.util.LinkedList;import java.util.List;public class Student implements Serializable, Comparable{private String studentName;private int studentId;//private int studentCourseAmount=4;private LinkedList courseList;Student(){studentName=null;studentId=0;courseList=new LinkedList();}public void setStudentNameValue(String name){//确定学⽣名称this.studentName=name;}public void setStudentIdValue(int id){//确定学⽣学号this.studentId=id;}public void setStudentCourseList(LinkedList list){//传⼊课程链listthis.courseList=list;// System.out.println(例：0916 张磊语⽂98 数学67); }public void setCourseGrade(Object o){//将与学科o同名的学科的成绩改为o的成绩for(int i=0;ithis.courseList.size();i++){ Course obj=new Course();obj=(Course) this.courseList.get(i);if(obj.equals(o)){Course res=(Course) o;obj.setCourseGradeValue(res.getCourseGradeValue());}public String getStudentNameValue(){//取得学⽣姓名return this.studentName;}public int getStudentId(){//取得学⽣学号return this.studentId;}public LinkedList getstudentCourseList(){//得到成绩链的⾸地址return this.courseList;}public long。

学生信息管理系统完整源代码+mysql文件

数据库所用的数据自己导入MYSQL5.5，Navicat8就可以用了。

下面是具体的数据资料/*MySQL Data TransferSource Host: localhostSource Database: simsTarget Host: localhostTarget Database: simsDate: 2013-6-25 9:24:26*/SET FOREIGN_KEY_CHECKS=0;-- ------------------------------ Table structure for manager-- ----------------------------DROP TABLE IF EXISTS `manager`;CREATE TABLE `manager` (`id` varchar(10) NOT NULL,`name` varchar(30) NOT NULL,`Mima` varchar(20) NOT NULL,PRIMARY KEY (`id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8;-- ------------------------------ Table structure for studentinfo-- ----------------------------DROP TABLE IF EXISTS `studentinfo`;CREATE TABLE `studentinfo` (`Sname` varchar(30) NOT NULL,`Ssex` varchar(10) NOTNULL,`Snumber` varchar(10) NOT NULL,`Sprofession` varchar(30) NOT NULL,`Sclass`varchar(20) NOT NULL,`Sdate` varchar(30) character set utf8 collate utf8_unicode_ciNOT NULL,PRIMARY KEY (`Snumber`)) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='InnoDBfree: 4096 kB';-- ------------------------------ Table structure for userinfo-- ----------------------------DROP TABLE IF EXISTS `userinfo`;CREATE TABLE `userinfo` (`id` varchar(10) NOT NULL,`name` varchar(30) NOT NULL,`Mima` varchar(20) character set utf8 collate utf8_unicode_ci NOT NULL, PRIMARY KEY(`id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8;-- ------------------------------ Records-- ----------------------------INSERT INTO `manager` VALUES ('1', '1', '2');INSERT INTO `manager` VALUES ('2', '恩恩', '123456');INSERT INTO `manager` VALUES ('3', '大大', '123456');INSERT INTO `manager` VALUES ('4', '啊啊', '123456');INSERT INTO `manager` VALUES ('5', '5', '5');INSERT INTO `manager` VALUES ('6', '孙霞', '123456');INSERT INTO `studentinfo` V ALUES ('张三', '男', '2010303755', '数学', '2', '2010-02- 12');INSERT INTO `studentinfo` V ALUES ('李四', '男', '2010303760', '物理', '1', '1995.9.6'); INSERT INTO `studentinfo` V ALUES ('王二', '女', '2010303761', '应数', '2','1990.9.11');INSERT INTO `studentinfo` V ALUES ('麻子', '女', '2010303762', '信计', '1','1999.9.10');INSERT INTO `userinfo` V ALUES ('1', '1', '1');INSERT INTO `userinfo` V ALUES ('13', '13', '1');INSERT INTO `userinfo` V ALUES ('2', '2', '2');INSERT INTO `userinfo` V ALUES ('3', '3', '3');INSERT INTO `userinfo` V ALUES ('6', '6', '6');INSERT INTO `userinfo` V ALUES ('7', '7', '6');下面是相应的程序：package MS;import java.awt.event.ActionEvent;import java.awt.event.ActionListener; import java.awt.Color;import java.awt.Container;import java.awt.Dimension;import java.awt.GridLayout;import java.awt.Toolkit;import java.awt.event.FocusEvent;import java.awt.event.FocusListener;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JTextField;import javax.swing.SwingConstants;public class Add implements ActionListener {JFrame f1;Container ct;JPanel jp,jp1,jp2,jp3;JButton btn1,btn2;JLabel label;JTextField tf1,tf2,tf3,tf4,tf5,tf6;Add(){f1=new JFrame();ct=f1.getContentPane();//初始化面板jp=new JPanel();jp1=new JPanel(new GridLayout(6,1));jp2=new JPanel(new GridLayout(6,1));jp3=new JPanel();btn1=new JButton("确定");btn2=new JButton("取消");label=new JLabel("<html>添加学生信息",SwingConstants.CENTER);label.setForeground(Color.gray);tf1=new JTextField(20);tf2=new JTextField(20);tf3=new JTextField(20);tf4=new JTextField(20);tf5=new JTextField(20);tf6=new JTextField(20);tf6.setText("例：2000-02-02");//文本框加入提示语tf6.addFocusListener(new FocusListener(){public void focusGained(FocusEvent e) {tf6.setText("");}public void focusLost(FocusEvent e) {}});jp.add(label);ct.add(jp,"North");jp1.add(new JLabel("姓名",SwingConstants.CENTER));jp2.add(tf1);jp1.add(new JLabel("性别",SwingConstants.CENTER));jp2.add(tf2);jp1.add(new JLabel("学号",SwingConstants.CENTER));jp2.add(tf3);jp1.add(new JLabel("专业",SwingConstants.CENTER));jp2.add(tf4);jp1.add(new JLabel("班级",SwingConstants.CENTER));jp2.add(tf5);jp1.add(new JLabel("入学时间",SwingConstants.CENTER));jp2.add(tf6);jp3.add(btn1);jp3.add(btn2);ct.add(jp1,"West");ct.add(jp2,"East");ct.add(jp3,"South");Toolkit kit=Toolkit.getDefaultToolkit();Dimension screen=kit.getScreenSize();int x=screen.width;int y=screen.height;f1.setSize(350,330);int xcenter=(x-350)/2;int ycenter=(y-330)/2;f1.setLocation(xcenter, ycenter);f1.setVisible(true);//f1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);btn1.addActionListener(this);btn2.addActionListener(this);}public void insert(){if(tf1.getText().equals("")||tf2.getText().equals("")||tf3.getText().equals("")||tf4.getText().equals("")||tf5.getText().equals("")||tf6.getText().equals("")){JOptionPane.showMessageDialog(f1,"请填写完整信息");return;}try{Class.forName("com.mysql.jdbc.Driver");}catch(ClassNotFoundException e){System.out.print("加载驱动程序失败");}String conURL="jdbc:mysql://localhost:3306/sims";try{Connectioncon=DriverManager.getConnection(conURL,"root","123456");Statement st=con.createStatement();String s="insert into studentinfo values('"+tf1.getText()+"','"+tf2.getText()+"','"+tf3.getText()+"','"+tf4.getText()+"','"+tf5.getText()+"','"+tf6.getText()+"');";String query="select * from studentinfo where Snumber='"+tf3.getText().trim()+"'";ResultSet res=st.executeQuery(query);if(res.next()){JOptionPane.showMessageDialog(f1,"学号信息已经存在！");con.close();tf3.setText("");}else if(tf6.getText().length()!=10){JOptionPane.showMessageDialog(f1,"入学时间格式有误!");con.close();tf6.setText("");}int insert=st.executeUpdate(s);if(insert==1){JOptionPane.showMessageDialog(f1,"录入信息成功！");tf1.setText("");tf2.setText("");tf3.setText("");tf4.setText("");tf5.setText("");tf6.setText("");}}catch(SQLException e){System.out.println("错误代码："+e.getErrorCode());System.out.println("错误信息："+e.getMessage());}}@SuppressWarnings("deprecation")public void actionPerformed(ActionEvent e){String cmd=e.getActionCommand();if(cmd.equals("确定")){insert();}else if(cmd.equals("取消")){f1.hide();}}public Container getCt(){return ct;}public void setCt(Container ct){this.ct = ct;}}package MS;import java.awt.BorderLayout;import java.awt.Color;import java.awt.Container;import java.awt.Dimension;import java.awt.Toolkit;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JScrollPane;import javax.swing.JTable;import javax.swing.JTextField;import javax.swing.SwingConstants;public class Delete implements ActionListener {JFrame f2;Container ct;JPanel jp1,jp2,jp3,jp4;JLabel label;JTextField text;JTable table;//接收数据库中返回的信息JButton btn1,btn2,btn3;Object columnName[]={"姓名","性别","学号","专业","班级","入学时间"};Object ar[][]=new Object[80][6];Delete(){f2=new JFrame();ct=f2.getContentPane();jp1=new JPanel();jp2=new JPanel();jp3=new JPanel();jp4=new JPanel();label=new JLabel();text=new JTextField();btn1=new JButton("查询");btn2=new JButton("删除");btn3=new JButton("取消");label=new JLabel("<html>请输入要删除的学生姓名:",SwingConstants.CENTER);label.setBackground(Color.blue);table=new JTable(ar,columnName);JScrollPane scroll=new JScrollPane(table);text=new JTextField(20);jp2.add(btn1);jp2.add(btn2);jp2.add(btn3);jp1.add(label);jp1.add(text);ct.add(jp1,"North");jp3.setLayout(new BorderLayout());jp3.add(new JLabel("学生信息如下"));jp3.add(scroll);ct.add(jp2,"South");ct.add(jp3,"Center");Toolkit kit=Toolkit.getDefaultToolkit();Dimension screen=kit.getScreenSize();int x=screen.width;int y=screen.height;f2.setSize(450, 400);int xcenter=(x-450)/2;int ycenter=(y-400)/2;f2.setLocation(xcenter, ycenter);f2.setVisible(true);//f2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);btn1.addActionListener(this);btn2.addActionListener(this);btn3.addActionListener(this);}int i=0;public void show(String s){while(i>=0){ar[i][0]="";ar[i][1]="";ar[i][2]="";ar[i][3]="";ar[i][4]="";ar[i][5]="";i--;}i=0;try{Class.forName("com.mysql.jdbc.Driver");}catch(ClassNotFoundException e){System.out.print("加载驱动程序失败");}String conURL="jdbc:mysql://localhost:3306/sims";try{Connection con=DriverManager.getConnection(conURL,"root","123456");Statement st=con.createStatement();String sql="select * from studentinfo where Sname='"+s+"'";ResultSet res=st.executeQuery(sql);/*if(!(res.next())){JOptionPane.showMessageDialog(f,"所要查询的信息不存在");} */while(res.next()){String sName=res.getString(1);String sSex=res.getString(2);String sNumber=res.getString(3);String sProfession=res.getString(4);String sClass=res.getString(5);String sDate=res.getString(6);ar[i][0]=sName;ar[i][1]=sSex;ar[i][2]=sNumber;ar[i][3]=sProfession;ar[i][4]=sClass;ar[i][5]=sDate;i++;}f2.repaint();con.close();}catch(SQLException e){System.out.println("错误代码："+e.getErrorCode());System.out.println("错误信息："+e.getMessage());}}public void delete(int line){try{Class.forName("com.mysql.jdbc.Driver");}catch(ClassNotFoundException e){System.out.print("加载驱动程序失败");}String conURL="jdbc:mysql://localhost:3306/sims";try{Connection con=DriverManager.getConnection(conURL,"root","123456");Statement st=con.createStatement();String name=(String)(ar[line][2]);String sql="delete from studentinfo where Snumber ='"+name+"'";int del=st.executeUpdate(sql);if(del==1){ar[line][0]="";ar[line][1]="";ar[line][2]="";ar[line][3]="";ar[line][4]="";ar[line][5]="";JOptionPane.showMessageDialog(null,"删除成功！","信息", JOptionPane.YES_NO_OPTION);}con.close();f2.repaint();}catch(SQLException e){System.out.println("错误代码："+e.getErrorCode());System.out.println("错误信息："+e.getMessage());}}@SuppressWarnings("deprecation")public void actionPerformed(ActionEvent e){String cmd=e.getActionCommand();if(cmd.equals("查询")){String qu=text.getText().trim();show(qu);}if(cmd.equals("删除")){int de=table.getSelectedRow();if(de==-1){JOptionPane.showMessageDialog(null,"请选定要删除的行","错误信息", JOptionPane.YES_NO_OPTION);}else{delete(de);}}if(cmd.equals("取消")){f2.hide();}}}package MS;import java.awt.Color;import java.awt.Container;import java.awt.Dimension;import java.awt.Toolkit;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JScrollPane;import javax.swing.JTable;import javax.swing.SwingConstants;public class Liulan implements ActionListener {JFrame f4;Container ct;JPanel jp1,jp2,jp3,jp4;JLabel label;JButton btn1,btn2;JTable table;Object[][] ar=new Object[80][6];Object[] columnName={"姓名","性别","学号","专业","班级","入学时间"};Liulan(){f4=new JFrame();ct=f4.getContentPane();jp1=new JPanel();jp2=new JPanel();jp3=new JPanel();jp4=new JPanel();btn1=new JButton("点击浏览");btn2=new JButton(" 取消");label=new JLabel("<html>学生信息浏览",SwingConstants.CENTER);label.setBackground(Color.blue);table=new JTable(ar, columnName);JScrollPane scroll=new JScrollPane(table);jp1.add(label);jp2.add(btn1);jp2.add(btn2);jp3.add(scroll);ct.add(jp1,"North");ct.add(jp3,"Center");ct.add(jp2,"South");Toolkit kit=Toolkit.getDefaultToolkit();Dimension screen=kit.getScreenSize();int x=screen.width;int y=screen.height;f4.setSize(500,530);int xcen=(x-500)/2;int ycen=(y-530)/2;f4.setLocation(xcen,ycen);f4.setVisible(true);btn1.addActionListener(this);btn2.addActionListener(this);}int i=0;public void select(){while(i>=0){ar[i][0]="";ar[i][1]="";ar[i][2]="";ar[i][3]="";ar[i][4]="";ar[i][5]="";i--;}i=0;try{Class.forName("com.mysql.jdbc.Driver");}catch(ClassNotFoundException e){System.out.print("加载驱动程序失败");}String conURL="jdbc:mysql://localhost:3306/sims";try{Connection con=DriverManager.getConnection(conURL,"root","123456");Statement st=con.createStatement();String s="select * from studentinfo";ResultSet res=st.executeQuery(s);while(res.next()){String sName=res.getString(1);String sSex=res.getString(2);String sNumber=res.getString(3);String sProfession=res.getString(4);String sClass=res.getString(5);String sDate=res.getString(6);ar[i][0]=sName;ar[i][1]=sSex;ar[i][2]=sNumber;ar[i][3]=sProfession;ar[i][4]=sClass;ar[i][5]=sDate;i++;}f4.repaint();con.close();}catch(SQLException e){System.out.println("错误代码："+e.getErrorCode());System.out.println("错误信息："+e.getMessage());}}@SuppressWarnings("deprecation")public void actionPerformed(ActionEvent e){// TODO Auto-generated method stubString cmd=e.getActionCommand();if(cmd.equals("点击浏览")){select();}else if(cmd.equals(" 取消")){f4.hide();}}}package MS;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.Color;import java.awt.Container;import java.awt.Dimension;import java.awt.Toolkit;import java.awt.event.ItemEvent;import java.awt.event.ItemListener;import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import java.sql.Connection;import java.sql.DriverManager;import javax.swing.ButtonGroup;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JPasswordField;import javax.swing.JRadioButton;import javax.swing.JTextField;import javax.swing.SwingConstants;@SuppressWarnings("serial")public class Login extends JFrame implements ActionListener {Container cp=null;JFrame f=null;JButton button1,button2,button3;JTextField t1;JPasswordField t2;JLabel jlable1,jlable2;JRadioButton rabtn1,rabtn2;Color c;JPanel jp1,jp2,jp3;String table=null;Login(){f=new JFrame("学生信息管理系统");button1=new JButton("确定");button2=new JButton("取消");button3=new JButton("注册");//button3.setOpaque(false);button3.setBorder(null);button3.setBackground(Color.getColor("#292421"));rabtn1=new JRadioButton("普通用户");rabtn1.setBackground(Color.getColor("#292421"));rabtn2=new JRadioButton("管理员");rabtn2.setBackground(Color.getColor("#292421"));ButtonGroup group=new ButtonGroup();group.add(rabtn1);group.add(rabtn2);cp=f.getContentPane();jlable1=new JLabel("输入用户号");jlable2=new JLabel("输入密码");jp1=new JPanel();jp2=new JPanel();jp3=new JPanel();t1=new JTextField(20);t2=new JPasswordField(20);//jp3.add(group);jp1.add(jlable1);jp1.add(t1);jp1.add(jlable2);jp1.add(t2);jp1.add(rabtn1);jp1.add(rabtn2);jp1.add(button3);JLabel JL=new JLabel("<html>欢迎登陆" + "",SwingConstants.CENTER);cp.add(JL,"North");jp2.add(button1);jp2.add(button2);cp.add(jp1,"Center");cp.add("South",jp2);cp.setBackground(new Color(127, 255, 212 ));jp2.setBackground(new Color(127, 255, 212 ));jp1.setBackground(new Color(127, 255, 212 ));Toolkit kit=Toolkit.getDefaultToolkit();Dimension screen=kit.getScreenSize();int x=screen.width;int y=screen.height;f.setSize(250,300);int xcenter=(x-300)/2;int ycenter=(y-300)/2;f.setLocation(xcenter,ycenter);/*显示在窗口中央*/f.setVisible(true);//f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//------------------------------------------------------------///*监听事件*/button1.addActionListener(this);button2.addActionListener(this);button3.addActionListener(this);rabtn1.addItemListener(new ItemListener(){public void itemStateChanged(ItemEvent e){JRadioButton jop=(JRadioButton) e.getSource();if (jop.isSelected())table="userinfo";}});rabtn2.addItemListener(new ItemListener(){public void itemStateChanged(ItemEvent e){JRadioButton jop=(JRadioButton) e.getSource();if (jop.isSelected())table="manager";}});f.addWindowListener(new WindowAdapter(){public void windowClosing(WindowEvent e){System.exit(0);}});}@SuppressWarnings("deprecation")public void confirm(String tableName){try{Class.forName("com.mysql.jdbc.Driver");}catch(ClassNotFoundException e){System.out.print("加载驱动程序失败");}String conURL="jdbc:mysql://localhost:3306/sims";try{Connection con=DriverManager.getConnection(conURL,"root","123456");Statement st=con.createStatement();String id=t1.getText().trim();String Mima=t2.getText().trim();String queryMima="select * from "+tableName+" where id='"+id+"' and mima='"+Mima+"'";ResultSet res=st.executeQuery(queryMima);if(res.next()){if(tableName.equals("manager"))new Mstudent(id);else if(tableName.equals("userinfo"))new Ustudent(id);f.hide();con.close();}else{JOptionPane.showMessageDialog(null,"密码错误请重输！！！","提示！",JOptionPane.YES_NO_OPTION);}t1.setText("");t2.setText("");}catch(SQLException g){System.out.println("错误代码："+g.getErrorCode());System.out.println("错误内容："+g.getMessage());}}ItemListener listen=new ItemListener(){public void itemStateChanged(ItemEvent e) {// TODO Auto-generated method stub}};public void actionPerformed(ActionEvent e){String cmd=e.getActionCommand();if(cmd.equals("确定")){if(table==null){JOptionPane.showMessageDialog(f,"请选择用户类型");}confirm(table);}else if(cmd.equals("取消")){f.dispose();}else if(cmd.equals("注册")){new Regist();}}public static void main(String []arg){new Login();}}package MS;import java.awt.BorderLayout;import java.awt.Color;import java.awt.Container;import java.awt.Dimension;import java.awt.Toolkit;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.BorderFactory;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JMenuBar;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JScrollPane;import javax.swing.SwingConstants;import javax.swing.border.TitledBorder;@SuppressWarnings("serial")public class Mstudent extends JFrame implements ActionListener {JButton Query = new JButton("查询信息");JButton add = new JButton("添加信息");JButton delete = new JButton("删除信息");JButton xiugai = new JButton("浏览全部信息");JButton liulan = new JButton("修改密码");JMenuBar mb = new JMenuBar();// 菜单栏JPanel jp = new JPanel();Container cp = getContentPane();String userName;Mstudent(){}Mstudent(String userName){erName = userName;mb.add(Query);mb.add(add);mb.add(delete);mb.add(xiugai);mb.add(liulan);JPanel j=new JPanel();j.add(mb,"Center");cp.add(j, "North");// 设置边框jp.setBorder(BorderFactory.createTitledBorder(BorderFactory.createLineBorder(Color.blue, 2), null, TitledBorder.CENTER,TitledBorder.TOP));jp.setLayout(new BorderLayout());JLabel label1 = new JLabel("欢迎使用学生信息管理系统",SwingConstants.CENTER);jp.add(label1);JScrollPane scrollpane = new JScrollPane(jp);cp.add(scrollpane,"Center");setTitle("欢迎登陆" + "--" + "你好:" + userName);Toolkit kit = Toolkit.getDefaultToolkit();Dimension screen = kit.getScreenSize();int x = screen.width; /* 取得显示器窗口的宽度*/int y = screen.height; /* 取得显示器窗口的高度*/setSize(600, 600);int xcenter = (x - 600) / 2;int ycenter = (y - 600) / 2;setLocation(xcenter, ycenter);/* 显示在窗口中央*/setVisible(true);//setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);// 注册临听器Query.addActionListener(this);add.addActionListener(this);delete.addActionListener(this);xiugai.addActionListener(this);liulan.addActionListener(this);}public void actionPerformed(ActionEvent e){String cmd = e.getActionCommand();if (cmd.equals("查询信息")){new QueryWays();}if (cmd.equals("添加信息")){new Add();}if (cmd.equals("删除信息")){new Delete();}if (cmd.equals("浏览全部信息")){new Liulan();}if (cmd.equals("修改密码")){new UpdateCode();}}public static void main(String[] args){new Mstudent("");}}package MS;import java.awt.Color;import java.awt.Container;import java.awt.Dimension;import java.awt.GridLayout;import java.awt.Toolkit;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JTextField;import javax.swing.SwingConstants;public class Query implements ActionListener {String sql =null;int a;String info;JFrame f3;// Container cp;JPanel jp1,jp2,jp3,jp4,jp,jpwest;JButton btn1,btn2;//确定，取消JLabel label,label2;//标签，请输入姓名（label）JTextField tf,tf1,tf2,tf3,tf4,tf5,tf6;//文本框Query(int a){this.a=a;f3=new JFrame();Container cp=f3.getContentPane();//初始化面板，按钮，标签，文本框jp=new JPanel();jp1=new JPanel();jp2=new JPanel(new GridLayout(6,1));jp3=new JPanel();jp4=new JPanel(new GridLayout(6,1));jpwest=new JPanel();btn1=new JButton("确定");btn2=new JButton("取消");label=new JLabel("<html>请输入姓名：" + "",SwingConstants.CENTER);label2=new JLabel("<html>请输入学号：" + "",SwingConstants.CENTER);label.setForeground(Color.gray);tf=new JTextField(20);//------------------------------------------------tf1=new JTextField(20);tf2=new JTextField(20);tf3=new JTextField(20);tf4=new JTextField(20);tf5=new JTextField(20);tf6=new JTextField(20);//布局，添加控件if(a==0){jp.add(label);jp.add(tf);}else if(a==1){jp.add(label2);jp.add(tf);}cp.add(jp,"North");jp4.add(new JLabel("姓名",SwingConstants.CENTER));jp2.add(tf1);jp4.add(new JLabel("性别",SwingConstants.CENTER));jp2.add(tf2);jp4.add(new JLabel("学号",SwingConstants.CENTER));jp2.add(tf3);jp4.add(new JLabel("专业",SwingConstants.CENTER));jp2.add(tf4);jp4.add(new JLabel("班级",SwingConstants.CENTER));jp2.add(tf5);jp4.add(new JLabel("入学时间",SwingConstants.CENTER));jp2.add(tf6);jp3.add(btn1);jp3.add(btn2);cp.add(jp4,"West");cp.add(jp2,"East");cp.add(jp3,"South");cp.add(jp1);Toolkit kit=Toolkit.getDefaultToolkit();Dimension screen=kit.getScreenSize();int x=screen.width; //显示窗口宽度int y=screen.height;//窗口高度f3.setSize(350,330);int xcenter=(x-350)/2;int ycenter=(y-330)/2;f3.setLocation(xcenter,ycenter);f3.setVisible(true);//f3.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);btn1.addActionListener(this);btn2.addActionListener(this);/*f3.addWindowListener(new WindowAdapter(){public void windowClosing(WindowEvent e){System.exit(0);}});*/。

学生成绩管理系统C语言源程序

{
for(p=head->next;p!=NULL&&strcmp(p->name,tem);p=p->next);
if (!p)
{
printf("\n\n找不到你要查询的姓名，请重新输入，输入0表\
示结束:");
scanf("%s",tem);
}
else if (!strcmp(p->name,tem))
n=0;
head=(Student *)malloc(LEN);
p2=head;
printf("\n请输入第%d名学生的学号，学号为0表示结束输入:",n+1);
scanf("%d",&flag);
while(getchar()!='\n');
for(;flag;)
{
n++;
p1=(Student *)malloc(LEN);
char xueqi[20];
int score[4];
int sum;
struct student *next;
}Student;
int n;
Student *cin(void);
Student *sort_1(Student *head,int);
void sort_2(Student *head);
max_3=min_3=p->score[2];max_2=min_2=p->score[3];
max_sum=min_sum=p->sum;
for(;p;p=p->next)
{
if (max_1<p->score[0]) max_1=p->score[0];

C语言学籍管理系统(内含源代码)

学籍管理系统一、系统简介设计一个基于结构体数组的学生学籍管理系统，能实现对学生学籍信息进行录入，修改，删除，查询和输出等基本操作二、需求分析学籍管理系统应该实现以下功能：1、能录入学生的基本信息，包括学号，姓名，专业，年级，性别和出生日期信息，保存到结构体数组中。

2、能根据输入的学号查询学生，进行信息的修改。

3、能根据输入的学号从结构体数组中删除学生的记录。

4、实现查询功能，能根据输入的学号或年级在屏幕上显示相应的学生信息。

5、能在屏幕上以列表的方式输出所有学生的信息。

三、概要设计1、系统功能根据项目的开发要求，本系统划分成六个主要功能模块：录入学生信息模块、修改学生信息模块、删除学生信息模块、查询学生信息模块、输出模块和推出模块。

系统功能机构图如下：2、重要数据的数据结构设计学生学籍的记录项用结构体Stu message表示，包括6个属性，stuno,name、spec、grade、sex、birthday 分另U代表学生的学号、专业、年级、性另U和出生日期，其中birthday 类型为自定义的结构体类型Date.Struct stumessage {Char stuno[11]: // 学号Char name[9]: // 姓名Char spec[2]: // 专业Char grade: // 年级Char sex : // 性别Stuct date birthday: // 出生日期}；日期类型date包括三个属性，分别代表年、月、日Struct date{int year : // 年Int month: //Int day: // H｝；3、函数设计学籍管理系统程序采用了结构化程序设计的思想，由1个.h 头文件和3个C源文件组成。

程序中除了主函数外，共设计了以下14个函数，分别包含在3个.c源文件中。

以下是这些函数原型及功能设计。

(1) void sysinfo(void)函数功能：在屏幕上输入系统及信息并等待用户响应。

python超详细实现完整学生成绩管理系统

python超详细实现完整学⽣成绩管理系统⽬录学⽣成绩管理系统简介源代码students.txtmain.pyLogin.pydb.pyMenuPage.pyview.py学⽣成绩管理系统简介⼀个带有登录界⾯具有增减改查功能的学⽣成绩管理系统(⾯向对象思想，利⽤tkinter库进⾏制作，利⽤.txt⽂件进⾏存储数据)源代码仅供学习参考，最好还是⾃⼰多敲多练习(实践是检验真理的唯⼀标准) students.txt⽤于存储数据main.pyfrom tkinter import *from Login import *import tkinter as tkroot = ()root.title('欢迎进⼊学⽣成绩管理系统')LoginPage(root)root.mainloop()Login.pyfrom tkinter import *from tkinter.messagebox import *from MenuPage import *class LoginPage(object):def __init__(self, master=None):self.root = master # 定义内部变量rootself.root.geometry('%dx%d' % (300, 180)) # 设置窗⼝⼤⼩ername = StringVar()self.password = StringVar()self.createPage()def createPage(self):self.page = Frame(self.root) # 创建Frameself.page.pack()Label(self.page).grid(row=0, stick=W)Label(self.page, text='账户: ').grid(row=1, stick=W, pady=10)Entry(self.page, textvariable=ername).grid(row=1, column=1, stick=E)Label(self.page, text='密码: ').grid(row=2, stick=W, pady=10)Entry(self.page, textvariable=self.password, show='*').grid(row=2, column=1, stick=E) Button(self.page, text='登陆', command=self.loginCheck).grid(row=3, stick=W, pady=10) Button(self.page, text='退出', command=self.page.quit).grid(row=3, column=1, stick=E) def loginCheck(self):name = ername.get()password = self.password.get()if name == 'hacker707' and password == 'admin':self.page.destroy()MenuPage(self.root)else:showinfo(title='错误', message='账号或密码错误！')db.pyimport jsonclass StudentDB(object):def __init__(self):self.students = []self._load_students_data()def insert(self, student):self.students.append(student)print(self.students)def all(self):return self.studentsdef delete_by_name(self, name): # 删除数据for student in self.students:if name == student["name"]:self.students.remove(student)breakelse:return Falsereturn True# 查询def search_by_name(self, name):for student in self.students:if name == student["name"]:return student # 姓名+成绩else:return False# 修改def update(self, stu): # 修改数据name = stu["name"]for student in self.students:if name == student["name"]:student.update(stu)return Trueelse:return False# 加载⽂件def _load_students_data(self):with open("students.txt", "r", encoding="utf-8") as f:text = f.read()if text:self.students = json.loads(text)# 保存数据def save_data(self):with open("students.txt", 'w', encoding="utf-8") as f:text = json.dumps(self.students, ensure_ascii=False)f.write(text)db = StudentDB()MenuPage.pyimport tkinter as tkfrom view import *class MenuPage(object):def __init__(self, master=None):self.root = masterself.root.geometry('%dx%d' % (600, 400))self.create_page()self.input_page = InputFrame(self.root)self.query_page = QuerryFrame(self.root)self.delete_page = DeleteFrame(self.root)self.update_page = UpdateFrame(self.root)self.about_page = AboutFrame(self.root)self.input_page.pack()def create_page(self):# 创建菜单对象menubar = tk.Menu(self.root)# add_command 添加menubar.add_command(label="录⼊", command=self.input_data) # label menubar.add_command(label="查询", command=self.query_data) # label menubar.add_command(label="删除", command=self.delete_data) # label menubar.add_command(label="修改", command=self.update_data) # label menubar.add_command(label="关于", command=self.about_data) # label # 设置菜单栏self.root.config(menu=menubar)# 切换界⾯def input_data(self):self.input_page.pack()self.update_page.pack_forget()self.delete_page.pack_forget()self.about_page.pack_forget()self.query_page.pack_forget()def query_data(self):self.input_page.pack_forget()self.query_page.pack()self.update_page.pack_forget()self.delete_page.pack_forget()self.about_page.pack_forget()def update_data(self):self.input_page.pack_forget()self.update_page.pack()self.delete_page.pack_forget()self.about_page.pack_forget()self.query_page.pack_forget()def delete_data(self):self.input_page.pack_forget()self.update_page.pack_forget()self.delete_page.pack()self.about_page.pack_forget()self.query_page.pack_forget()def about_data(self):self.input_page.pack_forget()self.update_page.pack_forget()self.delete_page.pack_forget()self.about_page.pack()self.query_page.pack_forget()view.pyimport tkinter as tkfrom db import dbfrom tkinter import ttk# 录⼊类class InputFrame(tk.Frame):def __init__(self, master=None):super().__init__(master)self.root = master = tk.StringVar()self.math = tk.StringVar()self.chinese = tk.StringVar()self.english = tk.StringVar()self.status = tk.StringVar()self.create_page()def create_page(self):bel(self).grid(row=0, stick=tk.W, pady=10)bel(self, text="姓名:").grid(row=1, stick=tk.W, pady=10)# 单⾏⽂本框 entry，textvariable绑定变量tk.Entry(self, textvariable=).grid(row=1, column=1, stick=tk.E)bel(self, text="数学:").grid(row=2, stick=tk.W, pady=10)# 单⾏⽂本框 entry，textvariable绑定变量tk.Entry(self, textvariable=self.math).grid(row=2, column=1, stick=tk.E)bel(self, text="语⽂:").grid(row=3, stick=tk.W, pady=10)# 单⾏⽂本框 entry，textvariable绑定变量tk.Entry(self, textvariable=self.chinese).grid(row=3, column=1, stick=tk.E)bel(self, text="英语:").grid(row=4, stick=tk.W, pady=10)# 单⾏⽂本框 entry，textvariable绑定变量tk.Entry(self, textvariable=self.english).grid(row=4, column=1, stick=tk.E)tk.Button(self, text="录⼊", command=self.recode_student).grid(row=5, column=1, stick=tk.E, pady=10) bel(self, textvariable=self.status).grid(row=6, column=1, stick=tk.E, pady=10)# 录⼊成绩def recode_student(self):student = {"name": .get(),"math": self.math.get(),"chinese": self.chinese.get(),"english": self.english.get(),} # ⼀个学⽣的成绩db.insert(student)# get()得到值# set()设置值self.status.set("插⼊数据成功！")self._clear_data()db.save_data()# 清空⽂本数据def _clear_data(self):.set("")self.math.set("")self.chinese.set("")self.english.set("")# 查询类class QuerryFrame(tk.Frame):def __init__(self, master=None):super().__init__(master)self.root = masterself.create_page()# 创建查询界⾯def create_page(self):self.create_tree_view()self.show_data_frame()# grid()tk.Button(self, text="刷新数据", command=self.show_data_frame).pack(anchor=tk.E, pady=5) # Treeviewdef create_tree_view(self):# 表头columns = ("name", "chinese", "math", "english")self.tree_view = ttk.Treeview(self, show='headings', columns=columns)self.tree_view.column("name", width=80, anchor='center')self.tree_view.column("chinese", width=80, anchor='center')self.tree_view.column("math", width=80, anchor='center')self.tree_view.column("english", width=80, anchor='center')self.tree_view.heading("name", text='姓名')self.tree_view.heading("chinese", text='语⽂')self.tree_view.heading("math", text='数学')self.tree_view.heading("english", text='英语')self.tree_view.pack()# 显⽰数据def show_data_frame(self):# 删除原节点 map(int,值）for i in map(self.tree_view.delete, self.tree_view.get_children("")):pass# 拿到列表⾥⾯所有值、students[]students = db.all()# 同时拿到索引跟value值for index, stu in enumerate(students):self.tree_view.insert('', index, values=(stu["name"], stu["chinese"], stu["math"], stu["english"]))class DeleteFrame(tk.Frame):def __init__(self, master=None):super().__init__(master)bel(self, text='删除数据').pack()self.status = tk.StringVar()self.de_name = tk.StringVar() # 获取删除学⽣的姓名self.create_page()# 创建界⾯def create_page(self):bel(self, text="根据姓名删除信息").pack(anchor=tk.W, padx=20)e1 = tk.Entry(self, textvariable=self.de_name)e1.pack(side=tk.LEFT, padx=20, pady=5)tk.Button(self, text='删除', command=self._delete).pack(side=tk.RIGHT)bel(self, textvariable=self.status).pack()# 删除def _delete(self):name = self.de_name.get()print(name)result = db.delete_by_name(name)if result:self.status.set(f'{name}已经被删')self.de_name.set("")else:self.status.set(f'{name}不存在')class UpdateFrame(tk.Frame):def __init__(self, master=None):super().__init__(master)self.root = masterbel(self, text='修改界⾯').pack()self.change_frame = tk.Frame(self)self.change_frame.pack() = tk.StringVar()self.math = tk.StringVar()self.chinese = tk.StringVar()self.english = tk.StringVar()self.status = tk.StringVar()self.create_page()def create_page(self):bel(self.change_frame).grid(row=0, stick=tk.W, pady=10)bel(self.change_frame, text="姓名:").grid(row=1, stick=tk.W, pady=10)# 单⾏⽂本框 entry，textvariable绑定变量tk.Entry(self.change_frame, textvariable=).grid(row=1, column=1, stick=tk.E)bel(self.change_frame, text="数学:").grid(row=2, stick=tk.W, pady=10)# 单⾏⽂本框 entry，textvariable绑定变量tk.Entry(self.change_frame, textvariable=self.math).grid(row=2, column=1, stick=tk.E)bel(self.change_frame, text="语⽂:").grid(row=3, stick=tk.W, pady=10)# 单⾏⽂本框 entry，textvariable绑定变量tk.Entry(self.change_frame, textvariable=self.chinese).grid(row=3, column=1, stick=tk.E)bel(self.change_frame, text="英语:").grid(row=4, stick=tk.W, pady=10)# 单⾏⽂本框 entry，textvariable绑定变量tk.Entry(self.change_frame, textvariable=self.english).grid(row=4, column=1, stick=tk.E)# 按钮tk.Button(self.change_frame, text='查询', command=self._search).grid(row=6, column=0, stick=tk.W, pady=10) tk.Button(self.change_frame, text='修改', command=self._change).grid(row=6, column=1, stick=tk.E, pady=10) bel(self.change_frame, textvariable=self.status).grid(row=7, column=1, stick=tk.E, pady=10)# 查询def _search(self):name = .get()student = db.search_by_name(name)if student:self.math.set(student["math"])self.chinese.set(student["chinese"])self.english.set(student["english"])self.status.set(f'查询到{name}同学的信息')else:self.status.set(f'没有查询到{name}同学的信息')# 更改成绩def _change(self):name = .get()math = self.math.get()chinese = self.chinese.get()english = self.english.get()stu = {"name": name,"math": math,"chinese": chinese,"english": english,}r = db.update(stu)if r:self.status.set(f"{name}同学的信息更新完毕")else:self.status.set(f"{name}同学的信息更新失败")class AboutFrame(tk.Frame):def __init__(self, master=None):super().__init__(master)self.root = masterself.create_page()def create_page(self):bel(self, text="关于本作品(⼈⽣苦短，我⽤python)").pack(anchor=tk.W)以上就是使⽤python实现学⽣成绩管理系统，如果有改进的建议，欢迎在评论区留⾔奥~这篇⽂章参加了csdn的活动，还请⼤家多多三连⽀持⼀下博主，你们的⽀持就是我创作的动⼒到此这篇关于python超详细实现完整学⽣成绩管理系统的⽂章就介绍到这了,更多相关python 学⽣成绩管理系统内容请搜索以前的⽂章或继续浏览下⾯的相关⽂章希望⼤家以后多多⽀持！。

学生成绩管理系统源代码

#include <stdio.h>#include <stdlib.h>#include <string.h>#include <dos.h>#include<ctype.h>#include<conio.h>#include<stddef.h>#include<time.h>#define PRINT1 textcolor(12); cprintf("\r 请按任意键返回主菜单\n\r");textcolor(10); getch();clrscr(); break;int shoudsave=0;struct student /* 学生信息结构体定义*/{char num[10],name[20],cla[4];int score1,score2,score3,total,ave;};typedef struct node{struct student data;struct node *next;}Node,*L;void print1(){cprintf("\r======================================================================= =========");}void print2(){cprintf("\n\r 1.输入学生成绩信息在这里你可以按照提示输入学生的班级，学号,姓名及各科成绩.\n");cprintf("\n\r 2.注销学生成绩信息在这里你可以按照学号或姓名将某名学生的信息从本系统中删除.\n");cprintf("\n\r 3.查询学生成绩信息在这里你可以按照学号或姓名查询某一名学生的信息.\n");cprintf("\n\r 4.修改学生成绩信息在这里你可以按照提示修改某一名学生的学号,姓名及各科成绩.");cprintf("\n\r 5.学生成绩信息排序在这里你可以看到所有学生的各科成绩.\n"); cprintf("\n\r 6.学生成绩信息统计在这里本系统将为你显示所有科目的最高分及最低分所得学生.\n");cprintf("\n\r 7.显示学生成绩信息在这里你可以看到系统中所有学生的信息.\n"); cprintf("\n\r 8.保存学生成绩信息在这里你可以将学生你信息保存到内存中.\n"); cprintf("\n\r 9.帮助学生成绩信息在这里你可以获得帮助信息.\n");cprintf("\n\r 0.退出系统在这里选择是否保存后,你可以安全的退出本系统.\n\n\r ");}void menu(){cprintf("\n\r\xc9\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xc d\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcb\xcd\xcd\xcd\xcd\ xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xc d\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xbb");cprintf("\r\xba 学生信息导入\xba 学生信息处理\xba");cprintf("\r\xba____________________________________\xba___________________________ _______________\xba");cprintf("\r\xba 1-->输入学生成绩信息\xba 6-->学生成绩信息统计\xba");cprintf("\r\xba 2-->注销学生成绩信息\xba 7-->显示学生成绩信息\xba");cprintf("\r\xba 3-->查询学生成绩信息\xba 8-->保存学生成绩信息\xba");cprintf("\r\xba 4-->修改学生成绩信息\xba 9-->帮助学生成绩信息\xba");cprintf("\r\xba 5-->学生成绩信息排序\xba 0-->退出系统\xba");cprintf("\r\xc8\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\ xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xca\xcd\xcd\xcd\xcd\xc d\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\ xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xbc");}void wrong(){cprintf("\n\r输入错误!请验证后重新输入.\n");}void notfind(){cprintf("\n\r该学生信息不存在!请验证后重新输入.\n");}void printc() /* 此函数用于输出中文格式*/{cprintf("\r学号姓名班级英语数学C语言总分平均分\n ");}void printe(Node *p) /* 此函数用于输出英文格式*/{cprintf("\r%-4s%-4s%4s%5d%5d%8d%5d%7d\n\r",p->data.num,p->,p->data.cla,p->dat a.score3,p->data.score2,p->data.score1,p->data.total,p->data.ave);}Node* Locate(L l,char findinfo[],char nameornum[]) /* 该函数用于定位连表中符合要求的接点，并返回该指针*/{Node *r;if(strcmp(nameornum,"num")==0)/* 按学号查询*/{r=l->next;while(r!=NULL){if(strcmp(r->data.num,findinfo)==0)return r;r=r->next;}}else if(strcmp(nameornum,"name")==0) /* 按姓名查询*/{r=l->next;while(r!=NULL){if(strcmp(r->,findinfo)==0)return r;r=r->next;}}return 0;}void input(L l) /* 增加学生*/{Node *p,*r,*s;char num[10];r=l;s=l->next;while(r->next!=NULL)r=r->next;/* 将指针置于最末尾*/while(1){ cprintf("\r如果输入完毕，请按任意键返回主菜单\n");cprintf("\r如果你还想输入，请按y(yes)继续\n\r");scanf("%s",num);if(strcmp(num,"y")==0){ cprintf("请你输入学号:");scanf("%s",num); } else break;while(s){if(strcmp(s->data.num,num)==0){printf("\t学号为'%s'的学生已经存在,若要修改请你选择'4 修改'!\n",num);print1();printc();printe(s);print1();printf("\n");getch();return;}s=s->next;}p=(Node *)malloc(sizeof(Node));strcpy(p->data.num,num);cprintf("\r请你输入姓名:");scanf("%s",p->);getchar();cprintf("\r请你输入班级:");scanf("%s",p->data.cla);getchar();cprintf("\r请你输入c语言成绩(0-100):");scanf("%d",&p->data.score1);getchar();cprintf("\r请你输入数学成绩(0-100):");scanf("%d",&p->data.score2);getchar();cprintf("\r请你输入英语成绩(0-100):");scanf("%d",&p->data.score3);getchar();p->data.total=p->data.score3+p->data.score1+p->data.score2;p->data.ave=p->data.total / 3; /* 信息输入已经完成*/p->next=NULL;r=p;shoudsave=1;}}void query(L l) /* 查询学生信息*/{int select;char findinfo[20];Node *p;if(!l->next){cprintf("\n 没有信息可以查询!\n");return;}cprintf("\n1==>按学号查找\n\r2==>按姓名查找\n\r");scanf("%d",&select);if(select==1) /* 学号*/{cprintf("\r请你输入要查找的学号:");scanf("%s",findinfo);p=Locate(l,findinfo,"num");if(p){cprintf(" 查找结果\n\r");print1();printc();printe(p);print1();}elsenotfind();}else if(select==2) /* 姓名*/{cprintf("\r请你输入要查找的姓名:");scanf("%s",findinfo);p=Locate(l,findinfo,"name");if(p){cprintf(" 查找结果\n\r");print1();printc();print1();}elsenotfind();}elsewrong();}void Delete(L l) /* 删除学生信息*/{int select;Node *p,*r;char findinfo[20];if(!l->next){cprintf("\n 没有信息可以删除!\n");return;}cprintf("\n1==>按学号删除\n\r2==>按姓名删除\n\r");scanf("%d",&select);if(select==1){cprintf("\r请你输入要删除的学号:");scanf("%s",findinfo);p=Locate(l,findinfo,"num");if(p){r=l;while(r->next!=p)r=r->next;r->next=p->next;free(p);cprintf("\n\r该学生已经成功删除!\n");shoudsave=1;}elsenotfind();}else if(select==2){cprintf("\r请你输入要删除的姓名:");scanf("%s",findinfo);p=Locate(l,findinfo,"name");if(p){r=l;while(r->next!=p)r=r->next;r->next=p->next;free(p);cprintf("\n\r该学生已经成功删除!\n");shoudsave=1;}elsenotfind();}else wrong();}void modify(L l) /*修改学生信息*/{Node *p;char findinfo[20];if(!l->next){cprintf("\n\r没有信息可以修改!\n");return;}cprintf("\r请你输入要修改的学生学号:");scanf("%s",findinfo);p=Locate(l,findinfo,"num");if(p){cprintf("\r请你输入新学号(原来是%s):",p->data.num);scanf("%s",p->data.num);cprintf("\r请你输入新姓名(原来是%s):",p->);scanf("%s",p->);getchar();cprintf("\r请你输入新班级(原来是%s):",p->data.cla);scanf("%s",p->data.cla);cprintf("\r请你输入新的c语言成绩(原来是%d分):",p->data.score1);scanf("%d",&p->data.score1);getchar();cprintf("\r请你输入新的数学成绩(原来是%d分):",p->data.score2);scanf("%d",&p->data.score2);getchar();cprintf("\r请你输入新的英语成绩(原来是%d分):",p->data.score3);scanf("%d",&p->data.score3);p->data.total=p->data.score3+p->data.score1+p->data.score2;p->data.ave=p->data.total/3;cprintf("\n\r信息修改成功!\n");shoudsave=1;}elsenotfind();}void display(L l){/*显示全部学生信息*/int count=0;Node *p;p=l->next;if(!p){cprintf("\n\r 没有信息可以显示!\n");return;}cprintf(" 显示结果");print1();printc();while(p){ if(count%5==0) getch();printe(p);p=p->next;count++;}print1();cprintf("\n");}void Statistic(L l) /*统计学生信息*/{Node *pm_max,*pe_max,*pc_max,*pt_max,*pa_max; /* 用于指向分数最高的接点*/ Node *pm_min,*pe_min,*pc_min,*pt_min,*pa_min;Node *r=l->next;if(!r){cprintf("\n\r 没有信息可以统计!\n");return ;}pm_max=pe_max=pc_max=pt_max=pa_max=pm_min=pe_min=pc_min=pt_min=pa_min=r; while(r!=NULL){if(r->data.score1>=pc_max->data.score1)pc_max=r;if(r->data.score1<=pc_min->data.score1)pc_min=r;if(r->data.score2>=pm_max->data.score2)pm_max=r;if(r->data.score2<=pm_min->data.score2)pm_min=r;if(r->data.score3>=pe_max->data.score3)pe_max=r;if(r->data.score3<=pe_min->data.score3)pe_min=r;if(r->data.total>=pt_max->data.total)pt_max=r;if(r->data.total<=pt_min->data.total)pt_min=r;if(r->data.ave>=pa_max->data.ave)pa_max=r;if(r->data.ave<=pa_min->data.ave)pa_min=r;r=r->next;}cprintf("====================================统计结果====================================\n");cprintf("\r总分最高者: %-16s %d分\n",pt_max->,pt_max->data.total); cprintf("\r平均分最高者: %-16s %d分\n",pa_max->,pa_max->data.ave); cprintf("\r英语最高者: %-16s %d分\n",pe_max->,pe_max->data.score3); cprintf("\r数学最高者: %-16s %d分\n",pm_max->,pm_max->data.score2); cprintf("\rc语言最高者: %-16s %d分\n\r",pc_max->,pc_max->data.score1); cprintf("\r总分最低者: %-16s %d分\n",pt_min->,pt_min->data.total); cprintf("\r平均分最低者: %-16s %d分\n",pa_min->,pa_min->data.ave); cprintf("\r英语最低者: %-16s %d分\n",pe_min->,pe_min->data.score3); cprintf("\r数学最低者: %-16s %d分\n",pm_min->,pm_min->data.score2); cprintf("\rc语言最低者: %-16s %d分\n\r",pc_min->,pc_min->data.score1); print1();}void Sort(L l){L ll;Node *p,*rr,*s;ll=(L)malloc(sizeof(Node)); /* 用于做新的连表*/ll->next=NULL;if(l->next==NULL){cprintf("\n\r 没有信息可以排序!\n");return ;}p=l->next;while(p){s=(Node*)malloc(sizeof(Node)); /* 新建接点用于保存信息*/s->data=p->data;s->next=NULL;rr=ll;while(rr->next!=NULL && rr->next->data.total>=p->data.total)rr=rr->next;if(rr->next==NULL)rr->next=s;else{s->next=rr->next;rr->next=s;}p=p->next;}free(l);l->next=ll->next;cprintf("\n\r 排序已经完成!\n");}void Save(L l) /* */{FILE* fp;Node *p;int flag=1,count=0;fp=fopen("c:\\student","wb");if(fp==NULL){cprintf("\n\r 重新打开文件时发生错误!\n");exit(1);}p=l->next;while(p){if(fwrite(p,sizeof(Node),1,fp)==1){p=p->next;count++;}else{flag=0;break;}}if(flag){cprintf("\n\r 文件保存成功.(有%d条信息已经保存.)\n\r",count);shoudsave=0;}fclose(fp);}void main() /* */{L l; /* 链表*/FILE *fp; /* 文件指针*/int count=0 ,i,menu_select; /*菜单选择*/char ch ,creat;Node *p,*r;time_t it;clrscr();textmode(C80);window(1,1,80,25);textbackground(1); clrscr();textcolor(10);printf("\r 学生成绩管理系统");printf("\r -------扬州大学信息工程学院软件0902班") ;printf("\r 设计人员:李天鹏");l=(Node*)malloc(sizeof(Node));l->next=NULL;r=l;fp=fopen("c:\\student","rb");if(fp==NULL){cprintf("\n\r 该文件还未存在，是否需要创建？(y/n，Y/N)\n\r");scanf("%c",&creat);if(creat=='y'||creat=='Y'){fp=fopen("c:\\student","wb");}elseexit(0);}gotoxy(9,11); textcolor(12);cprintf("\n\r 文件已经打开,系统正在导入信息");for(i=0;i<6;i++){ cprintf(".");sleep(1);}textcolor(10);gotoxy(9,11); cprintf("\n ");while(!feof(fp)){p=(Node*)malloc(sizeof(Node));if(fread(p,sizeof(Node),1,fp)) /* 将文件的内容放入接点中*/{p->next=NULL;r->next=p;r=p; /* 将该接点挂入连中*/count++;}}fclose(fp);/* 关闭文件*/gotoxy(1,3);cprintf("\n\r信息导入完毕,系统共导入%d条信息",count);sleep(1);while(1){ menu();textcolor(12);cprintf("\r现在时间: "); it=time(NULL);cprintf(ctime(&it));cprintf("\r左边数字对应功能选择,请按0--9选择操作:\n\r");textcolor(10) ;scanf("%d",&menu_select);if(menu_select==0){if(shoudsave==1){ getchar(); textcolor(128+12);cprintf("\n\r 信息已经改动,是否将改动保存到文件中(y/n Y/N)?\n\r"); scanf("%c",&ch);if(ch=='y'||ch=='Y')Save(l);}cprintf("\n\r 你已经成功退出学生成绩信息系统,欢迎下次继续使用!\n"); break;}switch(menu_select){case 1: clrscr(); input(l); clrscr(); break; /* 输入学生*/case 2: clrscr(); Delete(l); PRINT1 /* 删除学生*/case 3: clrscr(); query(l); PRINT1 /* 查询学生*/case 4: clrscr(); modify(l); PRINT1 /* 修改学生*/case 5: clrscr(); Sort(l); PRINT1case 6: clrscr(); Statistic(l); PRINT1case 7: clrscr(); display(l); PRINT1case 8: clrscr(); Save(l); PRINT1 /* 保存学生*/case 9: clrscr(); cprintf(" ==========帮助信息==========\n");print2(); PRINT1 ;default: wrong(); getchar(); break;}}}。

学生信息管理系统源代码

#include<stdio.h>#include <stdlib.h>#include <string.h>typedef struct{long class_1; //班级long number; //学号char name[20]; //姓名float math; //数学float c_program; //C语言float physics; //大学物理float english; //大学英语float polity; //政治float sport; //体育float summary; //总分float average; //平均分}Student;Student stud[100]; //定义结构体数组变量的大小int i=0; //i用于记录输入的学生的个数int menu() //菜单函数{int a;printf("***********************学生信息管理系统*************************\n");//菜单选择printf("\t\t【1】输入学生信息\n");printf("\t\t【2】显示所有学生的信息\n");printf("\t\t【3】按平均分升降排序\n");printf("\t\t【4】根据学生的学号查找学生的信息\n");printf("\t\t【5】插入学生的信息\n");printf("\t\t【6】删除学生的信息\n");printf("\t\t【7】修改学生的信息\n");printf("\t\t【8】从文件中读入数据\n");printf("\t\t【9】将所有记录写入文件\n");printf("\t\t【0】退出本系统\n");printf("***********************学生信息管理系统*************************\n");printf("请选择你要的操作【0-9】:");scanf("%d",&a); //读入一个数while(a<0 || a>9){printf("输入错误！请重新输入。

[工学]学生信息管理系统完整源码

学生信息管理系统完整源代码注：本系统采用C/S结构，运用Java GUI知识编写，数据库为SQL SERVER 2005，没有采用典型的三级框架结构，所以代码有冗余，仅供参考。

一、数据表及数据源首先创建数据库，包含数据表如下：数据库创建完成后，新建一个名为SIMS的数据源，不会建数据源的同学可以在去搜索创建数据源的详细步骤，这里的数据名称一定要为SIMS，否则在以后程序连接数据库的语句中会出现错误。

二、操作演示三、代码部分创建Java工程，创建名称为SIMS的包，一下Java类均包含在一个包内。

1.登录界面package SIMS;import javax.swing.*;import java.awt.*;import java.awt.event.*;import java.sql.*;import java.text.SimpleDateFormat;import java.util.*;import java.util.Date;public class login extends JFrame implements ActionListener{String userID; //保留用户输入IDString password; //保留用户输入passwordJLabel jlID=new JLabel("用户ID："); //使用文本创建标签对象 JLabel jlPwd=new JLabel("密码：");JTextField jtID=new JTextField(); //创建ID输入框JPasswordField jpPwd=new JPasswordField(); //创建密码输入框ButtonGroup bg=new ButtonGroup(); //创建ButtonGroup组件对象JPanel jp=new JPanel(); //创建Panel容器JLabel jl=new JLabel();JRadioButton jrb1=new JRadioButton("管理员");JRadioButton jrb2=new JRadioButton("教师");JRadioButton jrb3=new JRadioButton("学生",true);JButton jb1=new JButton("登录");JButton jb2=new JButton("重置");public login(){this.setLayout(null); //设置窗口布局管理器this.setTitle("学生信息管理系统"); //设置窗口标题this.setBounds(200,150,500,300); //设置主窗体位置大小和可见性this.setVisible(true); //设置窗口的可见性this.setResizable(false);jlID.setBounds(150,60,100,20); //设置ID框属性jtID.setBounds(220,60,100,20); //设置ID输入框属性jlPwd.setBounds(150,90,100,20); //设置密码框属性jpPwd.setBounds(220,90,100,20); //设置密码输入框属性jp.setBounds(35,120,400,250); //设置JPanel容器属性jb1.setBounds(160,170,60,20); //设置登录按钮属性jb2.setBounds(250,170,60,20); //设置取消按钮属性jb1.addActionListener(this); //设置登录按钮监听器jb2.addActionListener(this); //设置取消按钮监听器jl.setBounds(340,75,130,20); //设置提示框属性bg.add(jrb1); //将所有空间加入窗体bg.add(jrb2);bg.add(jrb3);this.add(jlID);this.add(jlPwd);this.add(jtID);this.add(jpPwd);this.add(jb1);this.add(jb2);this.add(jl);jp.add(jrb1);jp.add(jrb2);jp.add(jrb3);this.add(jp);centerShell(this);this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);}private void centerShell(JFrame shell) //窗口在屏幕中间显示{//得到屏幕的宽度和高度int screenHeight = Toolkit.getDefaultToolkit().getScreenSize().height;int screenWidth = Toolkit.getDefaultToolkit().getScreenSize().width;//得到Shell窗口的宽度和高度int shellHeight = shell.getBounds().height;int shellWidth = shell.getBounds().width;//如果窗口大小超过屏幕大小，让窗口与屏幕等大if(shellHeight > screenHeight)shellHeight = screenHeight;if(shellWidth > screenWidth)shellWidth = screenWidth;//让窗口在屏幕中间显示shell.setLocation(( (screenWidth - shellWidth) / 2),((screenHeight - shellHeight) / 2) );}public boolean equals(Object obj){ //重写equals方法判断字符串相等if(obj==null)return false;if(this == obj){return true;}if(obj instanceof String) {String str = (String)obj;return str.equals(userID);}return false;}public void actionPerformed(ActionEvent e){userID=jtID.getText(); //获取用户输入IDpassword=jpPwd.getText(); //获取用户输入密码if(e.getSource()==jb1){ //处理登录事件if(userID.equals("") || password.equals("")){jl.setFont(new Font("red",Font.BOLD,12)); //设置提示字体jl.setForeground(Color.red);jl.setText("请输入用户ID和密码");}else{Connection con=null;try{String url="jdbc:odbc:SIMS"; //连接数据库con=DriverManager.getConnection(url,"","");//获取连接字符串Statement stat=con.createStatement();if(jrb1.isSelected())//如果登录选中的管理员{ResultSet rs=stat.executeQuery("select * from Admin"); //判断输入用户名是否存在int flag=0;while(rs.next()){if(rs.getString(1).equals(userID)){flag=1;break;}}if(flag==0){jl.setFont(new Font("red",Font.BOLD,12));//设置提示字体jl.setForeground(Color.red);jl.setText("用户ID不存在");}if(flag==1){ResultSet rss=stat.executeQuery("selectAdmin_Pwd,Admin_Name from Admin where Admin_ID='"+userID+"'");//从表Admin获取信息while(rss.next()){String str=rss.getString(1);if(str.equals(password)){new admin(rss.getString(2));//创建admin窗口this.dispose(); //释放窗体}else{jl.setFont(new Font("red",Font.BOLD,12)); //设置提示字体jl.setForeground(Color.red);jl.setText("密码错误");}}}}else if(jrb2.isSelected()){ResultSet rs=stat.executeQuery("select * from Teacher_Info"); //判断输入用户名是否存在int flag=0;while(rs.next()){if(rs.getString(1).equals(userID)){flag=1;break;}}if(flag==0){jl.setFont(new Font("red",Font.BOLD,12));//设置提示字体jl.setForeground(Color.red);jl.setText("用户ID不存在");}if(flag==1){ResultSet rss=stat.executeQuery("selectTea_Pwd,Tea_Names from Teacher_Info where Tea_ID='"+userID+"'");//从表Teacher_Info获取信息while(rss.next()){String str=rss.getString(1);if(str.equals(password)){new teacher(rss.getString(2),userID);//创建admin窗口this.dispose(); //释放窗体}else{jl.setFont(new Font("red",Font.BOLD,12));//设置提示字体jl.setForeground(Color.red);jl.setText("密码错误");}}}}else if(jrb3.isSelected()){ResultSet rs=stat.executeQuery("select * from Student_Info"); //判断输入用户名是否存在int flag=0;while(rs.next()){if(rs.getString(1).equals(userID)){flag=1;break;}}if(flag==0){jl.setFont(new Font("red",Font.BOLD,12));//设置提示字体jl.setForeground(Color.red);jl.setText("用户ID不存在");}if(flag==1){ResultSet rsss=stat.executeQuery("selectStu_Pwd,Stu_Name from Student_Info where Stu_ID='"+userID+"'");//从表Student_Info获取信息while(rsss.next()){String str=rsss.getString(1);if(str.equals(password)){new student(rsss.getString(2),userID);//创建admin窗口this.dispose(); //释放窗体}else{jl.setFont(new Font("red",Font.BOLD,12));//设置提示字体jl.setForeground(Color.red);jl.setText("密码错误");}}}}}catch(Exception ex){ex.getStackTrace();}finally{try{con.close();}catch(Exception exc){exc.printStackTrace();}}}}else if(e.getSource()==jb2){ //处理登录事件jtID.setText("");jpPwd.setText("");jrb3.setSelected(true);jl.setText("");}}public static void main(String[] args){new login();}}2.添加课程package SIMS;import javax.swing.*;import java.sql.*;import java.awt.*;import java.awt.event.*;public class add_course extends JFrame implements ActionListener{ static add_course ss;String courseID=""; //课程名String coursename=""; //课程名String count=""; //课时JLabel warning=new JLabel(); //输入信息提示框JLabel title=new JLabel();JLabel note1=new JLabel("*");JLabel note2=new JLabel("*");JLabel jlcourseID=new JLabel("课程号："); //使用文本框创建标签对象JLabel jlcoursename=new JLabel("课程名：");JLabel jlcount=new JLabel("课时：");JTextField jtcourseID=new JTextField(); //创建文本框对象JTextField jtcoursename=new JTextField();JTextField jtcount=new JTextField();JButton submit=new JButton("添加"); //创建按钮对象JButton reset=new JButton("重置");public add_course(){ //添加教师账号信息this.setTitle("添加课程信息"); //设置窗口标题this.setLayout(null); //设置窗口布局管理器this.add(jlcourseID); //将控件添加到窗体this.add(title);this.add(jlcoursename);this.add(jlcount);this.add(jtcourseID);this.add(jtcoursename);this.add(jtcount);this.add(note1);this.add(note2);this.add(submit);this.add(reset);this.add(warning);title.setFont(new Font("red",Font.BOLD,15)); //设置提示字体title.setForeground(Color.red);note1.setFont(new Font("red",Font.BOLD,20)); //设置提示字体note1.setForeground(Color.red);note2.setFont(new Font("red",Font.BOLD,20)); //设置提示字体note2.setForeground(Color.red);warning.setFont(new Font("red",Font.BOLD,12)); //设置提示字体warning.setForeground(Color.red);title.setText("添加课程信息"); //设置控件及窗体位置大小title.setBounds(222,20,150,20);jlcourseID.setBounds(180,80,100,20);jlcoursename.setBounds(180,140,100,20);jlcount.setBounds(180,200,100,20);jtcourseID.setBounds(250,80,140,20);jtcoursename.setBounds(250,140,140,20);jtcount.setBounds(250,200,140,20);note1.setBounds(400,80,140,20);note2.setBounds(400,140,140,20);submit.setBounds(200,270,60,20);reset.setBounds(300,270,60,20);warning.setBounds(420,140,150,20); //设置提示框位置大小submit.addActionListener(this); //添加监听器reset.addActionListener(this);this.setSize(600,400); //设置窗体大小centerShell(this); //设置窗口位置在屏幕中央this.setResizable(false); //设置窗体不可变大小this.setVisible(true); //设置窗口可见性this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);}public boolean equals(Object obj){ //重写equals方法判断字符串相等if(obj==null)return false;if(this == obj){return true;}if(obj instanceof String) {String str = (String)obj;return str.equals(courseID);}return false;}public void actionPerformed(ActionEvent e){courseID=jtcourseID.getText(); //获取用户输入内容coursename=jtcoursename.getText();count=jtcount.getText();int temp=0,flag=0;Connection con=null;if(e.getSource()==submit){ //判断是否已输入必填信息if(courseID.equals("") || coursename.equals("")){warning.setText("请输入必填信息");}else{try{String url="jdbc:odbc:SIMS"; //连接数据库con=DriverManager.getConnection(url,"",""); //获取连接字符串Statement stat=con.createStatement();ResultSet rs=stat.executeQuery("select Course_ID from Course");while(rs.next()){if(rs.getString(1).equals(courseID)){warning.setText("课程ID已存在");flag=1; //判断用户名唯一break;}}if(flag!=1){if(!count.equals("")){temp=stat.executeUpdate("insert intoCourse(Course_ID,Course_Name,Course_Count)values('"+courseID+"','"+coursename+"','"+count+"')");}else{temp=stat.executeUpdate("insert intoCourse(Course_ID,Course_Name) values('"+courseID+"','"+coursename+"')");}}if(temp==1){JOptionPane.showMessageDialog(ss,"添加成功");warning.setText("");}else{JOptionPane.showMessageDialog(ss,"添加失败");}}catch(Exception ex){ex.getStackTrace();}}}else if(e.getSource()==reset){warning.setText("");jtcourseID.setT ext("");jtcoursename.setText("");jtcount.setText("");}}private void centerShell(JFrame shell) //窗口在屏幕中间显示{//得到屏幕的宽度和高度int screenHeight = Toolkit.getDefaultToolkit().getScreenSize().height;int screenWidth = Toolkit.getDefaultToolkit().getScreenSize().width;//得到Shell窗口的宽度和高度int shellHeight = shell.getBounds().height;int shellWidth = shell.getBounds().width;//如果窗口大小超过屏幕大小，让窗口与屏幕等大if(shellHeight > screenHeight)shellHeight = screenHeight;if(shellWidth > screenWidth)shellWidth = screenWidth;//让窗口在屏幕中间显示shell.setLocation(((screenWidth - shellWidth)/ 2),((screenHeight - shellHeight)/2));}}3.添加学生package SIMS;import javax.swing.*;import java.sql.*;import java.awt.*;import java.awt.event.*;public class add_student extends JFrame implements ActionListener{static add_teacher ss;String userID=""; //用户名String pwd1=""; //密码String pwd2=""; //确认密码String getsdept=""; //院系String name=""; //姓名JLabel warning=new JLabel(); //输入信息提示框JLabel title=new JLabel();JLabel note1=new JLabel("*");JLabel note2=new JLabel("*");JLabel note3=new JLabel("*");JLabel jlID=new JLabel("学号："); //创建文本框对象 JLabel jlName=new JLabel("姓名：");JLabel jlPwd=new JLabel("密码：");JLabel jlPwd2=new JLabel("确认密码：");JLabel sdept=new JLabel("学院：");JTextField jtID=new JTextField();JTextField jtName=new JTextField();JPasswordField jtPwd=new JPasswordField ();JPasswordField jtPwd2=new JPasswordField ();JTextField jtsdept=new JTextField();JButton submit=new JButton("添加"); //创建按钮对象JButton reset=new JButton("重置");public add_student(){this.setTitle("添加学生账号信息"); //设置窗口标题this.setLayout(null); //设置窗口布局管理器this.add(jlID); //将控件添加到窗体this.add(title);this.add(jlName);this.add(jlPwd);this.add(jlPwd2);this.add(sdept);this.add(jtID);this.add(jtName);this.add(jtPwd);this.add(jtPwd2);this.add(jtsdept);this.add(note1);this.add(note2);this.add(note3);this.add(submit);this.add(reset);this.add(warning);title.setFont(new Font("red",Font.BOLD,15)); //设置提示字体title.setForeground(Color.red);note1.setFont(new Font("red",Font.BOLD,20)); //设置提示字体note1.setForeground(Color.red);note2.setFont(new Font("red",Font.BOLD,20)); //设置提示字体note2.setForeground(Color.red);note3.setFont(new Font("red",Font.BOLD,20)); //设置提示字体note3.setForeground(Color.red);warning.setFont(new Font("red",Font.BOLD,12)); //设置提示字体warning.setForeground(Color.red);title.setText("添加学生账号信息");title.setBounds(222,20,150,20);jlID.setBounds(180,60,100,20);jlName.setBounds(180,100,100,20);jlPwd.setBounds(180,140,100,20);jlPwd2.setBounds(180,180,100,20);sdept.setBounds(180,220,100,20);jtID.setBounds(250,60,140,20);jtName.setBounds(250,100,140,20);jtPwd.setBounds(250,140,140,20);jtPwd2.setBounds(250,180,140,20);jtsdept.setBounds(250,220,140,20);note1.setBounds(400,60,140,20);note2.setBounds(400,140,140,20);note3.setBounds(400,180,140,20);submit.setBounds(200,270,60,20);reset.setBounds(300,270,60,20);warning.setBounds(420,100,150,20);submit.addActionListener(this);reset.addActionListener(this);this.setSize(600,400);centerShell(this);this.setVisible(true);this.setResizable(false); //设置窗体不可变大小this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);}public boolean equals(Object obj){ //重写equals方法判断字符串相等if(obj==null)return false;if(this == obj){return true;}if(obj instanceof String) {String str = (String)obj;return str.equals(pwd1);}return false;}public void actionPerformed(ActionEvent e){userID=jtID.getText(); //获取用户输入内容pwd1=jtPwd.getText();pwd2=jtPwd2.getText();getsdept=jtsdept.getText();name=jtName.getText();int temp=0,flag=0;Connection con=null;if(e.getSource()==submit){if(userID.equals("") || pwd1.equals("") || pwd2.equals("")){ //判断是否已输入必填信息warning.setText("请输入必填信息");}else if(!pwd1.equals(pwd2)){ //判断两次输入密码是否相同warning.setText("两次输入密码不相同");}else{try{String url="jdbc:odbc:SIMS"; //连接数据库con=DriverManager.getConnection(url,"",""); //获取连接字符串Statement stat=con.createStatement();ResultSet rs=stat.executeQuery("select Stu_ID from Student_Info");while(rs.next()){if(rs.getString(1).equals(userID)){warning.setText("用户ID已存在");flag=1; //判断用户名唯一break;}}if(flag!=1){if(!name.equals("") && !getsdept.equals("")){temp=stat.executeUpdate("insert intoStudent_Info(Stu_ID,Stu_Name,Stu_Pwd,Depart)values('"+userID+"','"+name+"','"+pwd1+"','"+getsdept+"')");}else if(!name.equals("") && getsdept.equals("")){temp=stat.executeUpdate("insert intoStudent_Info(Stu_ID,Stu_Name,Stu_Pwd) values('"+userID+"','"+name+"','"+pwd1+"')");}else if(name.equals("") && !getsdept.equals("")){temp=stat.executeUpdate("insert intoStudent_Info(Stu_ID,Stu_Pwd,Depart) values('"+userID+"','"+pwd1+"','"+getsdept+"')");}else{temp=stat.executeUpdate("insert intoStudent_Info(Stu_ID,Stu_Pwd) values('"+userID+"','"+pwd1+"')");}}if(temp==1){JOptionPane.showMessageDialog(ss,"添加成功");}else{JOptionPane.showMessageDialog(ss,"添加失败");}}catch(Exception ex){ex.getStackTrace();}}}else if(e.getSource()==reset){ //重置所有控件warning.setText("");jtID.setText("");jtName.setText("");jtPwd.setText("");jtPwd2.setText("");jtsdept.setText("");}}private void centerShell(JFrame shell) //窗口在屏幕中间显示{//得到屏幕的宽度和高度int screenHeight = Toolkit.getDefaultToolkit().getScreenSize().height;int screenWidth = Toolkit.getDefaultToolkit().getScreenSize().width;//得到Shell窗口的宽度和高度int shellHeight = shell.getBounds().height;int shellWidth = shell.getBounds().width;//如果窗口大小超过屏幕大小，让窗口与屏幕等大if(shellHeight > screenHeight)shellHeight = screenHeight;if(shellWidth > screenWidth)shellWidth = screenWidth;//让窗口在屏幕中间显示shell.setLocation(((screenWidth - shellWidth)/ 2),((screenHeight - shellHeight)/2));}//public static void main(String args[]){// new add_student();//}}4.添加教师package SIMS;import javax.swing.*;import java.sql.*;import java.awt.*;import java.awt.event.*;public class add_teacher extends JFrame implements ActionListener{static add_teacher ss;String userID=""; //用户名String pwd1=""; //密码String pwd2=""; //确认密码String getsdept=""; //院系String name=""; //姓名JLabel warning=new JLabel(); //输入信息提示框JLabel title=new JLabel();JLabel note1=new JLabel("*");JLabel note2=new JLabel("*");JLabel note3=new JLabel("*");JLabel jlID=new JLabel("教工号："); //使用文本框创建标签对象 JLabel jlName=new JLabel("姓名：");JLabel jlPwd=new JLabel("密码：");JLabel jlPwd2=new JLabel("确认密码：");JLabel sdept=new JLabel("学院：");JTextField jtID=new JTextField(); //创建文本框对象JTextField jtName=new JTextField();JPasswordField jtPwd=new JPasswordField ();JPasswordField jtPwd2=new JPasswordField ();JTextField jtsdept=new JTextField();JButton submit=new JButton("添加"); //创建按钮对象JButton reset=new JButton("重置");public add_teacher(){ //添加教师账号信息this.setTitle("添加教师账号信息"); //设置窗口标题this.setLayout(null); //设置窗口布局管理器this.add(jlID); //将控件添加到窗体this.add(title);this.add(jlName);this.add(jlPwd);this.add(jlPwd2);this.add(sdept);this.add(jtID);this.add(jtName);this.add(jtPwd);this.add(jtPwd2);this.add(jtsdept);this.add(note1);this.add(note2);this.add(note3);this.add(submit);this.add(reset);this.add(warning);title.setFont(new Font("red",Font.BOLD,15)); //设置提示字体title.setForeground(Color.red);note1.setFont(new Font("red",Font.BOLD,20)); //设置提示字体note1.setForeground(Color.red);note2.setFont(new Font("red",Font.BOLD,20)); //设置提示字体note2.setForeground(Color.red);note3.setFont(new Font("red",Font.BOLD,20)); //设置提示字体note3.setForeground(Color.red);warning.setFont(new Font("red",Font.BOLD,12)); //设置提示字体warning.setForeground(Color.red);title.setText("添加教师账号信息"); //设置控件及窗体位置大小title.setBounds(222,20,150,20);jlID.setBounds(180,60,100,20);jlName.setBounds(180,100,100,20);jlPwd.setBounds(180,140,100,20);jlPwd2.setBounds(180,180,100,20);sdept.setBounds(180,220,100,20);jtID.setBounds(250,60,140,20);jtName.setBounds(250,100,140,20);jtPwd.setBounds(250,140,140,20);jtPwd2.setBounds(250,180,140,20);jtsdept.setBounds(250,220,140,20);note1.setBounds(400,60,140,20);note2.setBounds(400,140,140,20);note3.setBounds(400,180,140,20);submit.setBounds(200,270,60,20);reset.setBounds(300,270,60,20);warning.setBounds(420,100,150,20); //设置提示框位置大小submit.addActionListener(this); //添加监听器reset.addActionListener(this);this.setSize(600,400); //设置窗体大小centerShell(this); //设置窗口位置在屏幕中央this.setResizable(false); //设置窗体不可变大小this.setVisible(true); //设置窗口可见性this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);}public boolean equals(Object obj){ //重写equals方法判断字符串相等if(obj==null)return false;if(this == obj){return true;}if(obj instanceof String) {String str = (String)obj;return str.equals(pwd1);}return false;}public void actionPerformed(ActionEvent e){userID=jtID.getText(); //获取用户输入内容pwd1=jtPwd.getText();pwd2=jtPwd2.getText();getsdept=jtsdept.getText();name=jtName.getText();int temp=0,flag=0;Connection con=null;if(e.getSource()==submit){ //判断是否已输入必填信息if(userID.equals("") || pwd1.equals("") || pwd2.equals("")){warning.setText("请输入必填信息");}else if(!pwd1.equals(pwd2)){ //判断两次输入密码是否一致warning.setText("两次输入密码不相同");}else{try{String url="jdbc:odbc:SIMS"; //连接数据库con=DriverManager.getConnection(url,"",""); //获取连接字符串Statement stat=con.createStatement();ResultSet rs=stat.executeQuery("select Tea_ID from Teacher_Info");while(rs.next()){if(rs.getString(1).equals(userID)){warning.setText("用户ID已存在");flag=1; //判断用户名唯一break;}}if(flag!=1){if(!name.equals("") && !getsdept.equals("")){temp=stat.executeUpdate("insert intoTeacher_Info(Tea_ID,Tea_Names,T ea_Pwd,Depart)values('"+userID+"','"+name+"','"+pwd1+"','"+getsdept+"')");}else if(!name.equals("") && getsdept.equals("")){temp=stat.executeUpdate("insert intoTeacher_Info(Tea_ID,Tea_Names,T ea_Pwd)values('"+userID+"','"+name+"','"+pwd1+"')");}else if(name.equals("") && !getsdept.equals("")){temp=stat.executeUpdate("insert intoTeacher_Info(Tea_ID,Tea_Pwd,Depart) values('"+userID+"','"+pwd1+"','"+getsdept+"')");}else{temp=stat.executeUpdate("insert intoTeacher_Info(Tea_ID,Tea_Pwd) values('"+userID+"','"+pwd1+"')");}}if(temp==1){JOptionPane.showMessageDialog(ss,"添加成功");}else{JOptionPane.showMessageDialog(ss,"添加失败");}}catch(Exception ex){ex.getStackTrace();}}}else if(e.getSource()==reset){warning.setText("");jtID.setText("");jtName.setText("");jtPwd.setText("");jtPwd2.setText("");jtsdept.setText("");}}private void centerShell(JFrame shell) //窗口在屏幕中间显示{//得到屏幕的宽度和高度int screenHeight = Toolkit.getDefaultToolkit().getScreenSize().height;int screenWidth = Toolkit.getDefaultToolkit().getScreenSize().width;//得到Shell窗口的宽度和高度int shellHeight = shell.getBounds().height;int shellWidth = shell.getBounds().width;//如果窗口大小超过屏幕大小，让窗口与屏幕等大if(shellHeight > screenHeight)shellHeight = screenHeight;if(shellWidth > screenWidth)shellWidth = screenWidth;//让窗口在屏幕中间显示shell.setLocation(((screenWidth - shellWidth)/ 2),((screenHeight - shellHeight)/2));}// public static void main(String[] args){// new add_teacher();// }}5.添加授课信息package SIMS;import javax.swing.*;import java.sql.*;import java.awt.*;import java.awt.event.*;public class add_tc extends JFrame implements ActionListener{static add_tc ss;String courseID=""; //课程名String teachername=""; //课程名JLabel warning=new JLabel(); //输入信息提示框JLabel title=new JLabel();JLabel note1=new JLabel("*");JLabel note2=new JLabel("*");JLabel jlcourseID=new JLabel("课程号："); //使用文本框创建标签对象JLabel jlteachername=new JLabel("教师号：");JTextField jtcourseID=new JTextField(); //创建文本框对象JTextField jtteachername=new JTextField();JButton submit=new JButton("添加"); //创建按钮对象JButton reset=new JButton("重置");public add_tc(){ //添加授课信息this.setTitle("添加授课信息"); //设置窗口标题this.setLayout(null); //设置窗口布局管理器this.add(jlcourseID); //将控件添加到窗体this.add(jlteachername);this.add(title);this.add(jtcourseID);this.add(jtteachername);this.add(note1);this.add(note2);this.add(submit);this.add(reset);this.add(warning);title.setFont(new Font("red",Font.BOLD,15)); //设置提示字体title.setForeground(Color.red);note1.setFont(new Font("red",Font.BOLD,20)); //设置提示字体note1.setForeground(Color.red);note2.setFont(new Font("red",Font.BOLD,20)); //设置提示字体note2.setForeground(Color.red);warning.setFont(new Font("red",Font.BOLD,12)); //设置提示字体warning.setForeground(Color.red);title.setText("添加授课信息"); //设置控件及窗体位置大小title.setBounds(222,20,150,20);jlcourseID.setBounds(180,80,100,20);jlteachername.setBounds(180,140,100,20);jtcourseID.setBounds(250,80,140,20);jtteachername.setBounds(250,140,140,20);note1.setBounds(400,80,140,20);note2.setBounds(400,140,140,20);submit.setBounds(200,250,60,20);reset.setBounds(300,250,60,20);warning.setBounds(420,140,150,20); //设置提示框位置大小submit.addActionListener(this); //添加监听器reset.addActionListener(this);this.setSize(600,400); //设置窗体大小centerShell(this); //设置窗口位置在屏幕中央this.setResizable(false); //设置窗体不可变大小this.setVisible(true); //设置窗口可见性this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);}public boolean equals(Object obj){ //重写equals方法判断字符串相等if(obj==null)return false;if(this == obj){return true;}if(obj instanceof String) {String str = (String)obj;return str.equals(courseID);}return false;}public void actionPerformed(ActionEvent e){courseID=jtcourseID.getText(); //获取用户输入内容teachername=jtteachername.getText();int temp=0,flag1=0,flag2=0,flag3=0;Connection con=null;if(e.getSource()==submit){ //判断是否已输入必填信息if(courseID.equals("") || teachername.equals("")){warning.setText("请输入必填信息");}else{try{String url="jdbc:odbc:SIMS"; //连接数据库con=DriverManager.getConnection(url,"",""); //获取连接字符串Statement stat=con.createStatement();ResultSet rs=stat.executeQuery("select Course_ID from Course");while(rs.next()){if(rs.getString(1).equals(courseID)){flag1=1; //判断课程ID存在break;}}ResultSet rss=stat.executeQuery("select Tea_ID fromTeacher_Info");while(rss.next()){if(rss.getString(1).equals(teachername)){flag2=1; //判断教师ID存在break;}}if(flag1!=1){warning.setText("课程ID不存在");}else if(flag2!=1){warning.setText("教师ID不存在");}ResultSet rsss=stat.executeQuery("select Course_ID,T ea_ID from tc");while(rsss.next()){if(rsss.getString(1).equals(courseID) &&rsss.getString(2).equals(teachername)){flag3=1;warning.setText("授课信息重复");。

c++语言学生成绩管理系统源代码

我是电大的学生，这是struct 类型的c 语言学生成绩管理系统代码，大家交流一下#include<stdio.h>#include<string.h> #include<stdlib.h>#define MAXN 100 //#define MAXN 100 //一个班最多的人数一个班最多的人数#define MAXM 2 //#define MAXM 2 //成绩的课程门数成绩的课程门数int R;void input(); //1.void input(); //1.学生成绩新建学生成绩新建void sort(); //2.void sort(); //2.学生成绩插入学生成绩插入void load(); //3.void load(); //3.学生成绩修改学生成绩修改void print(); //4.void print(); //4.学生成绩删除学生成绩删除void total(); //5.void total(); //5.学生成绩统计学生成绩统计void search(); //6.void search(); //6.学生成绩查询学生成绩查询void save(); //7.void save(); //7.学生成绩保存学生成绩保存void end(); //8.void end(); //8.结束结束struct student{char name[20]; //char name[20]; //保存全班姓名保存全班姓名保存全班姓名char num[12]; // char num[12]; //保存全班学号保存全班学号保存全班学号char man[20]; //char man[20]; //保存全班性别保存全班性别保存全班性别float score[MAXM]; //float score[MAXM]; //保存全班所有课程成绩保存全班所有课程成绩保存全班所有课程成绩 float sum; //float sum; //保存全班每个人的总成绩保存全班每个人的总成绩保存全班每个人的总成绩float avg; // float avg; //保存每个人的平均成绩保存每个人的平均成绩保存每个人的平均成绩};struct student s[MAXN];struct http{char subject[20]; //char subject[20]; //保存全班所有课程保存全班所有课程保存全班所有课程};struct http c[MAXM];void main() //void main() //欢迎首界面欢迎首界面欢迎首界面{ int select,l;system("color fC");printf("\n");printf("\n");printf("\n");printf("\n");printf(" printf(" ￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥\n"); \n"); printf(" * *\n"); printf(" * *\n"); printf(" * printf(" * 欢迎进入终极一班学生管理系统欢迎进入终极一班学生管理系统欢迎进入终极一班学生管理系统 *\n"); *\n"); printf(" * *\n"); printf(" * ︻┳═一︻┳═一︻┳═一 cf ... *\n"); cf ... *\n"); printf(" * printf(" * ┈━═☆甘总管的多塔生活∝╬══→┈━═☆甘总管的多塔生活∝╬══→┈━═☆甘总管的多塔生活∝╬══→ *\n"); *\n"); printf(" * *\n"); printf(" * printf(" * 凸凸^-^^-^凸凸凸凸凸凸^-^^-^^-^凸凸凸凸凸凸^-^^-^^-^凸凸凸凸凸凸^-^^-^^-^凸凸凸凸凸凸^-^^-^^-^凸凸凸凸凸凸^-^^-^^-^凸凸凸凸凸凸^-^^-^^-^凸凸 *\n"); printf(" printf(" ￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥\n"); \n"); printf(" printf(" ╭ ╭ ╭ v v v╮╮ ╔══╗╔╗╔══╗╔╗ ╔╗╔╗╔╗╔╗╔╗╔╗ ╭╭''''''╮╮\n");printf(" (@ ^o^ @)╚╗╔╝║║╔═╦╦╦═╗║╚╝╠═╦╦╗(～ : : ～～)\n");printf(" (~) : (~)╔╝╚╗║╚╣║║║║╠╣╚╗╔╣║║║║(~) v (~)\n");printf(" ╚══╝╚═╩═╩═╩═╝ ╚╝╚═╩═╝ \n");printf("\n");printf("\n");printf(" printf(" 请按任意键进入下一界面请按任意键进入下一界面请按任意键进入下一界面\n"); \n");printf("------------------------------------------------------------------\n"); system("pause");system("color f2");system("color f1");system("color f3"); system("color fE");system("color fB");system("color f5");system("color f9");system("color f6");system("color f1");system("color f3");system("color fE");system("color fB");system("color f5");system("color f9"); system("color f6");system("color f1");system("color f3");system("color f5");system("color f9");system("color f6");system("color fD");system("pause");system("color fC");system("cls"); // system("cls"); //上面是第一个界面上面是第一个界面上面是第一个界面while(1){system("cls");printf(" ****************欢迎进入终极一班学生管理系统****************\n");printf(" ******************************************************\n");printf(" * ∝╬══→ 1.学生成绩新建囧rz 欢 *\n");printf(" * ::======>> 2. 2.学生成绩插入学生成绩插入学生成绩插入迎迎 *\n"); printf(" * printf(" * ┈━═☆┈━═☆┈━═☆ 3. 3.学生成绩修改学生成绩修改学生成绩修改来来 *\n"); printf(" * printf(" * ∝╬══→∝╬══→∝╬══→ 4. 4.学生成绩删除学生成绩删除学生成绩删除到到 *\n"); printf(" * ∝╬══→∝╬══→ 5. 5.学生成绩统计学生成绩统计学生成绩统计英英 *\n"); printf(" * printf(" * ∝╬══→∝╬══→∝╬══→ 6. 6.学生成绩查询学生成绩查询学生成绩查询雄雄 *\n"); printf(" * printf(" * ▄︻┻═┳▄︻┻═┳▄︻┻═┳ 7. 7.学生成绩保存学生成绩保存学生成绩保存联联 *\n"); printf(" * printf(" * ∝╬══→∝╬══→∝╬══→ 8. 8.退出退出退出//撒拉嘿撒拉嘿盟盟 *\n"); printf(" * ( printf(" * (⊙＿⊙⊙＿⊙⊙＿⊙)()()(⊙＿⊙⊙＿⊙⊙＿⊙)()()(⊙＿⊙⊙＿⊙⊙＿⊙)()()(⊙＿⊙⊙＿⊙⊙＿⊙)()()(⊙＿⊙⊙＿⊙⊙＿⊙)()()(⊙＿⊙⊙＿⊙⊙＿⊙) *\n"); ) *\n");printf(" ******************************************************\n"); printf("\n"); printf("\n printf("\n"); printf("\n 请输入您的选择编号请输入您的选择编号请输入您的选择编号,,回车键继续：回车键继续：\n"); \n");printf("---------------------------------------------------------------------------\n"); scanf("%d",&select);do {if(select<1||select>8){printf(" printf(" 您输入有误，请重新输入，谢谢！您输入有误，请重新输入，谢谢！！！\n"); scanf("%d",&select);}l=select;}while(l<1||l>8);switch(select) {case 1:input();break; //1. case 1:input();break; //1.学生成绩新建学生成绩新建学生成绩新建case 2:sort(); break; //2. case 2:sort(); break; //2.学生成绩插入学生成绩插入学生成绩插入case 3:load(); break; //3. case 3:load(); break; //3.学生成绩修改学生成绩修改学生成绩修改case 4:print(); break; //4. case 4:print(); break; //4.学生成绩删除学生成绩删除学生成绩删除case 5:total();break; //5. case 5:total();break; //5.学生成绩统计学生成绩统计学生成绩统计case 6:search();break; //6. case 6:search();break; //6.学生成绩查询学生成绩查询学生成绩查询case 7:save();break; //7. case 7:save();break; //7.学生成绩保存学生成绩保存学生成绩保存case 8: end();break; //8. case 8: end();break; //8.结束结束结束default:printf(" default:printf(" 请按相应数学选择系统功能：请按相应数学选择系统功能：请按相应数学选择系统功能："); ");}}}void input() //1学生成绩输入成绩模块成绩输入成绩模块{int i,j,b;float a=0;printf(" printf(" 请输入该班同学的人数：请输入该班同学的人数：请输入该班同学的人数：\n"); \n");printf(" printf(" 班同学的人数在班同学的人数在1~%d 之间：之间：\n",MAXN); \n",MAXN);scanf("%d",&R);do{if(R<1||R>100){printf(" printf(" 您输入有误，请重新输入，谢谢！您输入有误，请重新输入，谢谢！！！\n"); scanf("%d",&R);}b=R;} while(b<1||b>100);for(i=0;i<MAXM;i++){printf(" printf(" 请输入该班同学的第请输入该班同学的第请输入该班同学的第%d %d 门课程名称为：门课程名称为：\n",(i+1)); \n",(i+1));scanf("%s", &c[i].subject);}for(i=0;i<R;i++){printf(" printf(" 请输入第请输入第请输入第%d %d 个同学的姓名：个同学的姓名：\n",(i+1)); \n",(i+1)); scanf("%s",&s[i].name);printf(" printf(" 请输入第请输入第请输入第%d %d 个同学的学号：个同学的学号：\n",(i+1)); \n",(i+1));scanf("%s",&s[i].num);printf(" printf(" 请输入第请输入第请输入第%d %d 个同学的性别（注：可以不详）：\n",(i+1)); scanf("%s",&s[i].man);printf(" printf(" 请依次输入请依次输入请依次输入%d %d 门学科的成绩：门学科的成绩：\n",MAXM); \n",MAXM);for(j=0;j<MAXM;j++){printf(" printf(" 请输入课程请输入课程请输入课程%s %s 的成绩为：的成绩为：\n",c[j].subject); \n",c[j].subject);scanf("%f",&s[i].score[j]);a=a+s[i].score[j];}s[i].sum=a;s[i].avg=s[i].sum/MAXM;a=0;}}void sort() //2学生成绩插入成绩模块模块{int i,j,k,b;float a=0;printf(" printf(" 请输入要插入的学生的位置请输入要插入的学生的位置1~%d 号：号：\n",R); \n",R);printf(" printf(" 第几个学生的位置之后：第几个学生的位置之后：第几个学生的位置之后：\n"); \n");scanf("%d",&k);do{if(k<1||k>R){printf(" printf(" 您输入有误，请重新输入，谢谢！您输入有误，请重新输入，谢谢！！！\n"); scanf("%d",&k);}b=k;}while(b<1||b>R);R=R+1;for(i=R;i>k;i--){strcpy(s[i].name,s[i-1].name);strcpy(s[i].num,s[i-1].num);strcpy(s[i].man,s[i-1].man);s[i].sum=s[i-1].sum;s[i].avg=s[i-1].avg;for(j=0;j<MAXM;j++) {s[i].score[j]=s[i-1].score[j];}}printf(" printf(" 请输入第请输入第请输入第%d %d 个同学的姓名：个同学的姓名：\n",(k+1)); \n",(k+1));scanf("%s",&s[k].name);printf(" printf(" 请输入第请输入第请输入第%d %d 个同学的学号：个同学的学号：\n",(k+1)); \n",(k+1));scanf("%s",&s[k].num);printf(" printf(" 请输入第请输入第请输入第%d %d 个同学的性别（注：可以不详）：\n",(k+1)); scanf("%s",&s[k].man);printf(" printf(" 请依次输入请依次输入请依次输入%d %d 门学科的成绩：门学科的成绩：\n",MAXM); \n",MAXM);for(j=0;j<MAXM;j++){printf(" printf(" 请输入课程请输入课程请输入课程%s %s 的成绩为：的成绩为：\n",&c[j].subject); \n",&c[j].subject);scanf("%f", &s[k].score[j]);a=a+s[k].score[j];}s[k].sum=a;s[k].avg=s[k].sum/MAXM;}void load() //3学生成绩修改学生成绩修改 {int load1(); int load2();int select,index,b;while(1){printf("*************************************************************\n");printf(" * 1.按学号修改按学号修改 * * \n");printf(" * 2.按姓名修改按姓名修改 * * \n"); printf(" * 0.返回返回 * * \n");printf(" * 请输入您的选择编号：请输入您的选择编号： * * \n");printf("*************************************************************\n");scanf("%d",&select);do{if(select<0||select>2){printf(" printf(" 您输入有误，请重新输入，谢谢！您输入有误，请重新输入，谢谢！！！\n"); scanf("%d",&select);}b=select;}while(b<0||b>2);switch(select){case 1:index=load1(); break;case 2:index=load2();break;case 0:return;}if(index!=-1){int i,j;float a=0,h[MAXM];i=index;printf(" printf(" 请输入请输入请输入%d %d 号的新学号：号的新学号： \n",i+1); \n",i+1);scanf("%s",&s[i].name);printf(" printf(" 请输入请输入请输入%d %d 号的新姓名：号的新姓名： \n",i+1); \n",i+1); scanf("%s",&s[i].num);printf(" printf(" 请输入第请输入第请输入第%d %d 个同学的性别（注：可以不详）：\n",(i+1)); scanf("%s",&s[i].man);for(j=0;j<MAXM;j++){printf(" printf(" 请输入课程请输入课程请输入课程%s %s 的成绩为：的成绩为：\n",&c[j].subject); \n",&c[j].subject);scanf("%f",&h[j]);s[i].score[j] =h[j];a=a+s[i].score[j];}s[i].sum=a;s[i].avg=s[i].sum/MAXM;printf(" printf(" 修改成功。

学生成绩管理系统的设计与实现代码

学生成绩管理系统的设计与实现代码本系统有增加学生记录、修改学生记录、删除学生记录、按姓名查询学生记录、按C语言成绩对学生进行排序、退出系统6大功能。

能够对学生的姓名，学号，c语言成绩做相应的操作。

在检测到输入成绩大于55时，会自动加上5。

该管理系统设计功能模块图：下面是源代码：#include "stdio.h"#include "string.h"/*定义学生结构体*/struct Student{char ID[20]; //学号char Name[20]; //姓名float C_Mark; //C语言成绩};/*声明学生数组及学生数量*/struct Student students[1000];int num=0;/*通过学号返回数组下标*/int Student_SearchByIndex(char id[]) {int i;for (i=0;i<num;i++){if (strcmp(students[i].ID,id)==0) {return i;}}return -1;}/*通过姓名返回数组下标*/int Student_SearchByName(char name[]) {int i;for (i=0;i<num;i++){if (strcmp(students[i].Name,name)==0){return i;}}return -1;}/*显示单条学生记录*/void Student_DisplaySingle(int index){printf("%10s%10s%8s\n","学号","姓名","C语言成绩");printf("-------------------------------------------------------------\n");printf("%10s%10s%8.2f\n",students[index].ID,students[index] .Name,students[index].C_Mark);}/****1、增加学生记录*****/void Student_Insert(){while(1){printf("请输入学号:");scanf("%s",&students[num].ID);getchar();printf("请输入姓名:");scanf("%s",&students[num].Name);getchar();printf("请输入C语言成绩:");scanf("%f",&students[num].C_Mark);getchar();if (54<students[num].C_Mark && students[num].C_Mark< 60) //把55~59分之间的成绩都加上5分{students[num].C_Mark += 5;}num++;printf("是否继续?(Y/N)，继续请按任意键，否则输入N:");if (getchar()=='N'){break;}}}/******2、修改学生信息**********/void Student_Modify(){while(1){char id[20];int index;printf("请输入要修改的学生的学号:");scanf("%s",&id);getchar();index=Student_SearchByIndex(id);if (index==-1){printf("该学生不存在!\n");}else{printf("你要修改的学生信息为:\n");Student_DisplaySingle(index);printf("-- 请输入新值--\n");printf("请输入学号:");scanf("%s",&students[index].ID);getchar();printf("请输入姓名:");scanf("%s",&students[index].Name);getchar();printf("请输入C语言成绩:");scanf("%f",&students[index].C_Mark);getchar();}printf("是否继续?(Y/N)，继续请按任意键，否则输入N:");if (getchar()=='N'){break;}}}/****3、删除学生信息****/void Student_Delete(){int i;while(1){char id[20];int index;printf("请输入要删除的学生的学号:");scanf("%s",&id);getchar();index=Student_SearchByIndex(id);if (index==-1){printf("学生不存在!\n");}else{printf("你要删除的学生信息为:\n");Student_DisplaySingle(index);printf("是否真的要删除?(Y/N)");if (getchar()=='Y'){for (i=index;i<num-1;i++){students[i]=students[i+1];//把后边的对象都向前移动}num--;}getchar();printf("已删除\n");}printf("是否继续删除?(Y/N)，继续请按任意键，否则输入N:");if (getchar()=='N'){break;}}}/****4、按姓名查询******/void Student_Select(){while(1){char name[20];int index;printf("请输入要查询的学生的姓名:");scanf("%s",&name);getchar();index=Student_SearchByName(name);if (index==-1){printf("学生不存在!\n");}else{printf("你要查询的学生信息为:\n");Student_DisplaySingle(index);}printf("是否继续?(Y/N)，继续请按任意键，否则输入N:");if (getchar()=='N'){break;}}}/******5、按C语言成绩排序*******/void Student_SortByAverage(){int i,j;struct Student tmp;for (i=0;i<num;i++){for (j=1;j<num-i;j++){if (students[j-1].C_Mark<students[j].C_Mark){tmp=students[j-1];students[j-1]=students[j];students[j]=tmp;}}}}/*显示学生信息*/void Student_Display(){int i;printf("%10s%10s%8s\n","学号","姓名","成绩");printf("-------------------------------------------------------------\n");for (i=0;i<num;i++){printf("%10s%10s%8.2f\n",students[i].ID,students[i].Name ,students[i].C_Mark);}}/*将学生信息从文件（Database.txt）中读出*/void IO_ReadInfo(){FILE *fp;int i;if ((fp=fopen("Database.txt","rb"))==NULL){printf("不能打开文件!\n");return;}if (fread(&num,sizeof(int),1,fp)!=1){num=-1;}else{for(i=0;i<num;i++){fread(&students[i],sizeof(struct Student),1,fp);}}fclose(fp);}/*将学生信息写入文件（Database.txt）*/void IO_WriteInfo(){FILE *fp;int i;if ((fp=fopen("Database.txt","wb"))==NULL){printf("不能打开文件!\n");return;}if (fwrite(&num,sizeof(int),1,fp)!=1){printf("写入文件错误!\n");}for (i=0;i<num;i++){if (fwrite(&students[i],sizeof(struct Student),1,fp)!=1){printf("写入文件错误!\n");}}fclose(fp);}/***********主程序*********/void main(){int choice;IO_ReadInfo(); //读取文件while(1){/*主菜单*/printf("\n------ 学生成绩管理系统------\n");printf("1. 增加学生记录\n");printf("2. 修改学生记录\n");printf("3. 删除学生记录\n");printf("4. 按姓名查询学生记录\n");printf("5. 按C语言成绩排序\n");printf("6. 退出\n");printf("请选择(1-6):");scanf("%d",&choice);getchar();switch(choice){case 1:Student_Insert();break;case 2:Student_Modify();break;case 3:Student_Delete();break;case 4:Student_Select();break;case 5:Student_SortByAverage();Student_Display();break;case 6:exit(0);break;}IO_WriteInfo();}}1234567891011121415161718192021222324252627282930313233343637383940414243444546474849505152535455565859606162636465666768697071727374757677788081828384858687888990919293949596979899 100102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320322323324325326327328329330331332333334335336337338运行结果:测试第一个功能，输入四个学生的成绩：测试第二个功能，修改学生记录：测试第三个功能，删除学生记录：测试第四个功能，按姓名查询学生记录：测试第五个功能，显示所有学生的成绩，按照C语言成绩由高到底排序：我们可以看到，各项功能的实现，在第2个步骤中，将赵的成绩改为80，而第3个步骤删除了李的成绩。

学生信息管理系统c语言版源代码

学生信息管理系统c语言版源代码#include <stdio.h> #include <string.h> #include <stdlib.h> #include <conio.h> #define N 1000typedef struct student {int number;char name[20];int grade;int gaoshu;int yingyu;int jisuanji;int sum;}STUDENT;STUDENT student[N]; int shuliang=0;void menu();void fhzjm(){char biaozhi[20];printf("\n");printf("还需要操作么,如果需要操作请输入:yes，否则请输入:no\n");scanf("%s",biaozhi);if(strcmp(biaozhi,"yes")==0){menu();}else if(strcmp(biaozhi,"no")==0)exit(0);else{printf("请输入正确的字符，谢谢～\n"); fhzjm();}}void DengJi(){int rs;int i,k=1;system("CLS");printf("请输入需要输入几个学生信息:"); scanf("%d",&rs);for(i=shuliang;i<shuliang+rs;i++,k++) {printf("请输入第%d个学生的学号:",k); scanf("%d",&student[i].number);printf("请输入学生的姓名:");scanf("%s",student[i].name);printf("请输入学生3门课的成绩:"); printf("请输入第1门课的成绩:");scanf("%d",&student[i].gaoshu);printf("请输入第2门课的成绩:");scanf("%d",&student[i].yingyu);printf("请输入第3门课的成绩:");scanf("%d",&student[i].jisuanji);}shuliang=shuliang+rs;fhzjm();}void ShanChu(){char shanchuinfo[10];system("CLS");printf("删除全部学生信息请输入\"all\"，删除指定学号的学生信息请输入\"one\"\n");scanf("%s",shanchuinfo);if(strcmp(shanchuinfo,"all")==0){int j;printf("你删除的学生信息如下:\n");printf("-----------学号-------------姓名-------------高数--------------英语--------------计算机\t\n");for(j=0;j<shuliang;j++)printf("----%d-------%s-------%d-------%d-------%d\t\n",student[j].number,student[j].name,student[j].gaoshu,student[j].jisuanji);shuliang=0;printf("删除成功\n\n");}else if(strcmp(shanchuinfo,"one")==0){struct student *p=NULL;int choice;int i,j,k=0;printf("请输入你要删除的人的学号:");scanf("%d",&choice);for(i=0;i<shuliang;i++){if(choice==student[i].number){k=1;j=i;break;}}if(k){if(shuliang==1){p=&student[0];free(p);shuliang=0;}else{for(i=j;i<shuliang;i++) {student[i]=student[i+1];}shuliang=shuliang-1;}printf("删除成功\n\n");}else{printf("输入数据错误～\n"); }}fhzjm();}void LiuLan(){int i;system("CLS");if(shuliang==0){printf("系统里面没有任何学生的信息～\n");}else{for(i=0;i<shuliang;i++){printf("第%d个学生的学号为:%d\n",i+1,student[i].number);printf("第%d个学生的姓名为:%s\n",i+1,student[i].name);printf("第%d个学生的第一门课的成绩为:%d\n",i+1,student[i].gaoshu);printf("第%d个学生的第二门课的成绩为:%d\n",i+1,student[i].yingyu);printf("第%d个学生的第三门课的成绩为:%d\n",i+1,student[i].jisuanji);student[i].sum=student[i].gaoshu+student[i].yingyu+student[i].jisuan ji;printf("第%d个学生的总成绩为:%d\n",i+1,student[i].sum);}}fhzjm();}void ChaZhao(){int xx;char choice,yy[20];int i,j,k=0;system("CLS");if(shuliang==0){printf("系统里面没有任何学生的信息～\n");fhzjm();}printf("三种查找方式:学号，姓名，成绩\n");printf("如果按学号查找请输1，如果按姓名查找请输2，如果按成绩查找请输3\n");printf("请输入您查找的方式:");scanf("%s",&choice);if(choice=='1'){printf("请输入需要查找学生的学号:");scanf("%d",&xx);printf("您所查找的学生的信息为:\n");printf("----学号----姓名----高数成绩----英语成绩----计算机成绩----\t\n");for(i=0;i<shuliang;i++){if(xx==student[i].number){j=i;k=1;printf("----%d-------%s-------%d-------%d-------%d----\t\n",student[j].number,student[j].name,student[j].gaoshu,student[j].yingyu,student[i].jis uanji);}}if(k==0)printf("输入信息有误:\n");}else if(choice=='2'){printf("请输入需要查找学生的姓名:\n");scanf("%s",yy);printf("您所查找的学生的信息为:\n");printf("----学号----姓名----高数成绩----英语成绩----计算机成绩----\t\n");for(i=0;i<shuliang;i++){if(strcmp(yy,student[i].name)==0){j=i;k=1;printf("----%d-------%s-------%d-------%d-------%d----\t\n",student[j].number,student[j].name,student[j].gaoshu,student[j].yingyu,student[j].jis uanji);}}if(k==0)printf("输入信息有误:\n");}else if(choice=='3'){printf("请输入需要查找学生的成绩:\n");scanf("%d",&xx);printf("您所查找的学生的信息为:\n");printf("----学号----姓名----高数----英语----计算机----\t\n");for(i=0;i<shuliang;i++){if(xx==student[i].grade){j=i;k=1;printf("----%d-------%s-------%d-------%d-------%d----\t\n",student[j].number,student[j].name,student[j].gaoshu,student[j].yingyu,student[i].jis uanji);}}if(k==0)printf("输入信息有误:\n");}fhzjm();}void PaiXu(){struct student *p1[N],**p2,*temp;int i,j;system("CLS");p2=p1;for( i=0;i<shuliang;i++){p1[i]=student+i;}for( i=0;i<shuliang;i++){for( j=i+1;j<shuliang;j++){if((*(p2+i))->sum<(*(p2+j))->sum){temp=*(p2+i);*(p2+i)=*(p2+j);*(p2+j)=temp;} }}printf("按照总成绩排序之后的信息为:\n");printf("----学号----姓名----总成绩----\t\n");for( i=0;i<shuliang;i++){student[i].sum=student[i].gaoshu+student[i].yingyu+student[i].jisuan ji;printf("----%d-----%s----%d-----\n",(*(p2+i))->number,(*(p2+i))->name,(*(p2+i))->sum);}fhzjm();}void CunChu(){int i;FILE *rs;if((rs=fopen("student.txt","w"))==NULL){printf("not open");exit(0);}for(i=0;i<shuliang;i++){fwrite(&student[i], sizeof(student[i]), 1, rs); }if(ferror(rs)){fclose(rs);perror("写文件失败～\n");return;}printf("存储文件成功～\n");fclose(rs);fhzjm();}void DaoChu(){struct student t;int i=0;FILE* fp = fopen("student.txt", "r");shuliang=0;if(NULL==fp){perror("读取文件打开失败～\n");return;}memset(student,0x0,sizeof(student));while(1){fread(&t,sizeof(t),1,fp);if(ferror(fp)){fclose(fp);perror("读文件过程失败～\n");return;}if(feof(fp)){break;}student[i]=t;i++;}fclose(fp);shuliang=i; printf("导出文件成功～\n"); fhzjm();}void menu(){int n=0;system("CLS");printf(" 学生信息管理系统\n");printf(" 作者:陈椿\n");printf("-------------------MENU-----------------\n"); printf(" 1.登记学生信息\n");printf(" 2.删除学生信息\n");printf(" 3.浏览所有已经登记的学生\n");printf(" 4.查找\n");printf(" 4.1按学号查找\n");printf(" 4.2按姓名查找\n");printf(" 4.3按成绩查找\n");printf(" 5.根据总成绩排序\n");printf(" 6.存储到文件\n");printf(" 7.从文件导出\n");printf(" 8.退出系统\n");a: printf(" 请选择:");scanf("%d",&n);switch (n){case 1:DengJi();break;case 2:ShanChu();break;case 3:LiuLan();break;case 4:ChaZhao();break;case 5:PaiXu();break;case 6:CunChu();break;case 7:DaoChu();break;case 8:exit(0);break;default:{printf("请输入1-8之间的数字，谢谢～\n"); goto a;}}}main() {menu();}。

学生管理系统c语言源代码

学生管理系统c语言源代码学生管理系统c语言源代码#include stdio.h#include dos.h#include string.h#include stdlib.h#include malloc.h#define SIZE 8struct student{char name;char num;int score;float ave;struct student *next;}stu[SIZE],temp,s;void shuru(){int i,j,sum,length,flag=1,a;FILE *fp;while(flag==1){printf(“Define a rangeclass number:");scanf("%d",printf("Input the total number of the class(a):"); scanf("%d",length);if(lengtha)flag=0;}for(i=0;ilength;i++){printf("\n请输入学生的信息:");printf("\n输入姓名:");scanf("%s",stu[i].name);printf("\n输入序号.:");scanf("%s",stu[i].num);printf("\n输入成绩:\n");sum=0;for(j=0;jj++){printf("score %d:",j+1);scanf("%d",stu[i].score[j]);sum+=stu[i].score[j];}stu[i].ave=sum/3.0;}学生管理系统c语言源代码fp=fopen("stu1.txt","w");for(i=0;ilength;i++)if(fwrite(stu[i],sizeof(struct student),1,fp)!=1)printf("File write error\n");fclose(fp);fp=fopen("stu1.txt","r");printf("\name\ NO. score1 score2 score3 sum ave\n");for(i=0;ilength;i++){fread(stu[i],sizeof(struct student),1,fp);printf("%3s%5s%7d%7d%7d%7d%10.2f\n",stu[i].name,stu[i].num,stu[i ].score,stu[i].score,stu[i].score,sum=stu[i].score+stu[i].score+stu[i].score,stu[i].ave);}}void chaxun(){ FILE *fp, *fp1;char n,name;int i,j,k,t,m,flag=1;if((fp=fopen("stu1.txt","r"))==NULL){printf("Can not open the file.");exit(0);}printf("\noriginal data:\n");k=i;printf("\nPlease select the menu(1.number ):"); scanf("%d",switch(m){case 1:printf("\nchaxun number:");scanf("%s",n);for(flag=1,i=0;ii++){if(strcmp(n,stu[i].num)==0){j=i;flag=0;break;}}break;case 2:printf("\nchaxun name:");scanf("%s",name);for(flag=1,i=0;ii++){if(strcmp(name,stu[i].name)==0){j=i;flag=0;break;学生管理系统c语言源代码}}}if(!flag){printf("\nYou can find:\n");fp1=fopen("stu2.txt","w");printf(" name NO. score1 score2 score3ave\n");fwrite(stu[j],sizeof(struct student),1,fp1);printf("%-15s%11s%7d%7d%7d%10.2f",stu[j].name,stu[j].num,stu[j].score,stu[j].score,stu[j].score,stu[j].ave);}else printf("\nNot found!");fclose(fp);fclose(fp1);}xiugai(){ int a;printf("\nplease select the menu(1.CHARU 2.__ ):");scanf("%d",switch(a){case 1:Insert(); break;case 2:Delete(); break;}}Insert(){ FILE *fp;int i,j,t,n;printf("\nNO.:");scanf("%s",s.num);printf("name:");scanf("%s",);printf("score1,score2,score3:");scanf("%d,%d,%d",s.score,s.score,s.score);s.ave=(s.score+s.score+s.score)/3.0;if((fp=fopen("stu1.txt","r"))==NULL){printf("Can not open the file.");exit(0);}printf("\noriginal data:\n");for(i=0;fread(stu[i],sizeof(struct student),1,fp)!=0;i++) {printf("\n%-15s%11s",stu[i].name,stu[i].num);for(j=0;jj++)学生管理系统c语言源代码printf("%7d",stu[i].score[j]);printf("%10.2f",stu[i].ave);}fclose(fp);n=i;for(t=0;stu[t].aves.avett++);printf("\nnow:\n");fp=fopen("stu1.txt","w");for(i=0;ii++){fwrite(stu[i],sizeof(struct student),1,fp);printf("\n%-15s%11s",stu[i].name,stu[i].num);for(j=0;jj++)printf("%7d",stu[i].score[j]);printf("%10.2f",stu[i].ave);}fwrite(s,sizeof(struct student),1,fp);printf("\n%-15s%11s%7d%7d%7d%10.2f",,s.num,s.score,s.score, s.score,s.ave);for(i=t;ii++){fwrite(stu[i],sizeof(struct student),1,fp);printf("\n%-15s%11s",stu[i].name,stu[i].num);for(j=0;jj++)printf("%7d",stu[i].score[j]);printf("%10.2f",stu[i].ave);}fclose(fp);}Delete(){ FILE *fp;int i,j,t,n,flag;char number;if((fp=fopen("stu1.txt","rb"))==NULL){printf("Can not open the file.");exit(0);}printf("\noriginal data:");for(i=0;fread(stu[i],sizeof(struct student),1,fp)!=0;i++) {printf("\n%-15s%11s",stu[i].name,stu[i].num);for(j=0;jj++)printf("%7d",stu[i].score[j]);printf("%10.2f",stu[i].ave);}fclose(fp);n=i;学生管理系统c语言源代码printf("\nInput number deleted:");scanf("%s",number);for(flag=1,i=0;flagii++){if(strcmp(number,stu[i].num)==0){for(t=i;tt++){strcpy(stu[t].num,stu[t+1].num);strcpy(stu[t].name,stu[t+1].name);for(j=0;jj++)stu[t].score[j]=stu[t+1].score[j];stu[t].ave=stu[t+1].ave;}n=n-1;elseprintf("\n Not found!");printf("\nNow,the content of file:\n");fp=fopen("stu1.txt","wb");for(i=0;ii++)fwrite(stu[i],sizeof(struct student),1,fp);fclose(fp);fp=fopen("stu1.txt","r");for(i=0;fread(stu[i],sizeof(struct student),1,fp)!=0;i++)printf("%-15s%11s%7d%7d%7d%10.2f\n",stu[i].name,stu[i].num,stu[i].score, stu[i].score,stu[i].score,stu[i].ave);fclose(fp);}paixu(){FILE *fp;int i,j,n;if((fp=fopen("stu1.txt","r"))==NULL){printf("Can not open the file.");exit(0);}printf("\nfile'stu1.txt':");for(i=0;fread(stu[i],sizeof(struct student),1,fp)!=0;i++) {printf("\n%-15s%11s",stu[i].name,stu[i].num);for(j=0;jj++)printf("%7d",stu[i].score[j]);printf("%10.2f",stu[i].ave);}fclose(fp);n=i;for(i=0;ii++)for(j=i+1;jj++)学生管理系统c语言源代码if(stu[i].avestu[j].ave){temp=stu[i];stu[i]=stu[j];stu[j]=temp;}printf("\nnow:");fp=fopen("stu1.txt","w");for(i=0;ii++){fwrite(stu[i],sizeof(struct student),1,fp);printf("\n%-15s%11s",stu[i].name,stu[i].num);tongji(){ FILE *fp;int i,j,k,labe1,b;int a5=0;int a6=0;int a7=0;int a8=0;int a9=0; int a10=0; float t;if((fp=fopen("stu1.txt","r"))==NULL){printf("Can not open the file.");exit(0);}printf("\nfile'stu1.txt':");for(i=0;fread(stu[i],sizeof(struct student),1,fp)!=0;i++){printf("\n%-15s%11s",stu[i].name,stu[i].num); for(j=0;jj++)printf("%7d",stu[i].score[j]);printf("%10.2f",stu[i].ave);}fclose(fp);k=i;for(i=0;ii++){labe1=0;if(stu[i].ave60){labe1++;t=labe1/(float)k*100;}}printf("\nbujigelv:");printf("%f%",t);printf("\n");for(j=0;jj++){a5=0;a6=0;a7=0;a8=0;a9=0;a10=0;k=i;printf("kemu is %d:\n",j);for(i=0;ii++)学生管理系统c语言源代码{b=stu[i].score[j]/10;if(b6)a5++;elseif(b=6b7)a6++;elseif(b=7b8)a7++;elseif(b=8b9)a8++;if(b=9b10)a9++;elseif(b==10)a10++;}printf(" 不及格is %d\n",a5);printf(" 60--69 is %d\n",a6);printf(" 70--79 is %d\n",a7);printf(" 80--89 is %d\n",a8);printf(" 90--99 is %d\n",a9);printf(" 100 is %d\n",a10);}}main(){int a;printf(" ____\n"); printf(" 欢迎进入学生成绩管理系统\n");printf(" ____\n"); while(1){printf("\n选择菜单:\n");printf("\n");printf(" 1.输入 2.查询 3.排序 4.修改 5.统计 6.退出\n"); scanf("%d",switch(a){case 1: shuru();break;case 2: chaxun(); break;case 3: paixu(); break;case 4: xiugai(); break;学生管理系统c语言源代码case 5: tongji();break; case 6: exit(0); }。

学生选课管理系统(全源代码,Linux环境)

//******＊＊***＊＊＊＊*＊＊**＊***＊*＊****＊＊******＊＊*＊***＊＊*＊＊*＊**＊*****//*＊＊＊*＊**＊*＊*＊＊＊＊**＊****＊***＊＊＊＊＊**＊＊＊*＊＊*＊*＊*＊**＊***＊***＊//list.h文件#ifndef _LIST_H＃define _LIST_H＃define _INLINE_ static inlinestruct list_head ｛struct list_head ＊next, *prev;};#define LIST_HEAD_INIT(name）｛&（name), &(name）}＃define LIST_HEAD（name) \struct list_head name = LIST_HEAD_INIT(name)＃define INIT_LIST_HEAD（ptr）do {\（ptr)->next = (ptr)；(ptr)->prev = (ptr)；\} while (0)_INLINE_ void __list_add（struct list_head *add，struct list_head *prev，struct list_head *next）｛next—〉prev = add；add->next = next；add—〉prev = prev;prev—〉next = add;}_INLINE_ void list_add（struct list_head *add, struct list_head ＊head) {__list_add(add, head，head—〉next）；｝_INLINE_ void list_add_tail（struct list_head *add, struct list_head ＊head)｛__list_add（add, head->prev，head）；}_INLINE_ void __list_del（struct list_head *prev, struct list_head *next）｛next—>prev = prev；prev—>next = next;}_INLINE_ void list_del（struct list_head ＊entry)｛__list_del（entry-〉prev，entry—>next)；｝_INLINE_ void list_del_init(struct list_head *entry){__list_del（entry—〉prev，entry->next）;INIT_LIST_HEAD（entry)；}_INLINE_ int list_empty(struct list_head *head）｛return head->next == head；}_INLINE_ void list_splice(struct list_head *list，struct list_head *head){struct list_head ＊first = list—>next；if (first != list) ｛struct list_head *last = list->prev;struct list_head *at = head->next；first—〉prev = head;head—〉next = first；last—〉next = at；at-〉prev = last;｝｝#define list_entry（ptr, type, member）\((type ＊）（(char *)(ptr) - （unsigned long）（&(（type *)0）—>member））)#define list_for_each(pos, head）\for (pos = （head)->next; pos != （head)；pos = pos—〉next)#define list_for_each_safe(pos，pnext, head) \for （pos = (head）—〉next, pnext = pos—>next；pos ！= （head）；\pos = pnext, pnext = pos—〉next)＃undef _INLINE_#endif//＊* ****＊＊*＊＊＊*＊*＊*＊＊＊**＊**＊*＊**＊*＊*＊****＊＊＊*＊**＊＊＊＊**＊＊＊*＊＊*＊**＊＊***＊*＊8//＊**＊＊****＊＊＊＊＊＊*＊＊***＊**＊****＊＊**＊*＊**＊****＊＊＊＊＊＊*＊＊＊＊***＊***＊＊*＊＊＊＊***//*＊**头文件head。

课程设计：学生学籍管理系统源代码

#include”stdio。

h”#include"conio。

h”#include"stdlib。

h”＃include”string。

h"＃define N 1000 //N为可输入的学生总人数，可根据需要更改#define M 2 //M为宏定义的(在创建密码函数中)可建立的登陆用户个数，可更改struct student //定义学生信息结构体数组{char num［9］; //学号char name[20]; //姓名char depar[15］; //院系char zhuanye［15］；//专业char classes[5]; //班级char age[3］；//年龄char sex［4]; //性别char nation［5]; //民族char birth[9］; //出生日期char add[10]；//籍贯｝;struct code //定义密码结构体数组{char name[20］;char code［7];｝co[M］，s0;//确认是否新创建密码文件模块int code(){FILE ＊fp;if(（fp=fopen("学生学籍管理系统__code。

txt","rt")）==NULL）{printf（”密码文件不存在，请输入新的用户名及密码:\n");//若不存在此密码文件，则提示用户创建密码printf（"请输入任意键继续!”）;getch（）;system（"cls"）;return 1; //无密码文件返回1 ｝elsereturn 0; //已有密码文件返回0 ｝//新创建初始密码void code_input（){FILE *fp;int i；if(（fp=fopen（”学生学籍管理系统__code。

txt”，"wt"）)==NULL)；//当建立密码文件成功时，进入for循环for（i=0;i〈M;i++) //M为宏定义的可建立的登陆用户个数，可更改｛printf("请录入第%d个用户名：",i+1）；//创建不同的用户名及密码scanf(”％s",co［i]。

学生成绩管理系统(数据结构C语言版源代码)

学生成绩管理系统(数据结构C语言版源代码)-标准化文件发布号：（9556-EUATWK-MWUB-WUNN-INNUL-DDQTY-KII#include<stdio.h>#include<string.h>#include<stdlib.h>struct students{char Num[10]; /*字符型学生学号*/char Name[20]; /*字符型学生姓名*/char Sex[3]; /*字符型学生性别*/double English; /*双精度实型英语成绩*/double Java; /*双精度实型Java成绩*/double Sjjg; /*双精度实数据结构*/double Szdl; /*双精度实型数字电路*/double Jsj; /*计算机组成原理*/struct students *next; /*用与构建连表指向下一结点*/};FILE *fp; /*定义全局变量fp*/void Revisemenu();/*修改菜单*/void Sortmenu();/*排序菜单*/void menu();/*主菜单*/void secret();/*安全验证*/struct students * Input();/*新建学生信息*/void fprint(struct students *head);/*将信息导入文件可追加*/void fprint_(struct students *head);/*将信息导入文件并覆盖*/void Browse(struct students *head);/*浏览全部学生信息*/struct students * create(struct students *head,int *n);/*从tushu_list中读取数据构建链表*/void FindofNum(struct students *head);/*按学号查询学生信息*/void FindofNname(struct students *head);/*按姓名查询学生信息*/void SortEnglish(struct students * head);/*按英语成绩排序*/void SortJava(struct students * head);/*按Java成绩排序*/void SortSjjg(struct students * head);/*按数据结构成绩排序*/void SortSzdl(struct students * head);/*按数字逻辑电路成绩排序*/void SortJsj(struct students * head);/*按计算机组成原理成绩排序*/struct students * Delete(struct students * head,char m[15]);/*按学号删除学生成绩信息*/struct students * Revise();/*修改学生信息（按编号修改）*//*主菜单*/void menu(){printf("\n\n");printf("***************************************************\n");printf(" 学生成绩管理系统 \n");printf("---------------------------------------------------\n");printf(" 1-添加新同学 2-浏览学生信息 \n");printf(" 3-按学号查询 4-按姓名查询 \n");printf(" 5-按成绩排序 6-修改学生信息 \n");printf(" 7-删除学生信息 0-退出系统 \n");printf("---------------------------------------------------\n");printf("___________________________________________________\n");}/*排序菜单*/void Sortmenu(){printf("\n\n");printf("***************************************************\n");printf(" 按成绩排序 \n");printf(" 1-大学英语 2-JAVA编程 \n");printf(" 3-数据结构 4-数字逻辑电路 \n");printf(" 5-计算机组成原理 0-返回上级菜单 \n");printf("***************************************************\n");}/*修改菜单*/void Revisemenu(){printf("\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n");printf(" 1--修改学生姓名 2--修改学生学号 \n");printf(" 3--修改学生性别 4--修改英语成绩 \n");printf(" 5--修改JAVA成绩 6--修改数据结构 \n");printf(" 7--修改数字电路 8--修改计算计 \n");printf(" 0--返回上级菜单 \n");printf("\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n");}/*安全验证*/void secret(){char a[20];printf("**欢迎来到学生信息管理系统，进入系统前请先进行密码验证---");printf(" ");do{gets(a); /*输入密码*/system("cls"); /*调用库函数清屏*/printf("对不起！您输入的密码有误，请重新输入---");}while(strcmp(a,"0605")!=0); /*单一密码"0605"*/system("cls");}/*新建学生信息*/struct students * Input(){struct students *p1,*p2,*head; /*建立辅助结点及头结点*/char Name;int n=0,x;printf("\n请按对应项输入学生信息以#结束：\n");printf("姓名学号性别英语 Java 数据结构数字电路计算机组成原理\n");p1=(struct students *)malloc(sizeof(struct students));head=p2=p1;do{ /*使用do while语句输入学生信息*/scanf("%s",&p1->Name);if(strcmp(p1->Name,"#")==0)break; /*判断结束符*/elsescanf("%s%s%lf%lf%lf%lf%lf",p1->Num,p1->Sex,&p1->English,&p1->Java,&p1->Sjjg,&p1->Szdl,&p1->Jsj);Name='#';p1=(struct students *)malloc(sizeof(struct students));p2->next=p1;p2=p1;n++;}while(1);p1->next=NULL;printf("学生信息输入结束！\n");getchar();printf("是否保存学生信息（1.是/2.否）：");scanf("%d",&x);if(x==1)fprint(head); /*调用函数保存至文件*/elseprintf("\n文件没有被保存！\n");return head; /*返回头指针*/}/*将信息导入文件可追加*/void fprint(struct students *head){struct students *p1;if((fp=fopen("students_list.txt","a"))==NULL){printf("File open error!\n");exit(0);}for(p1=head;p1->next!=NULL;p1=p1->next) /*遍历*/fprintf(fp,"%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n", p1->Name,p1->Num,p1->Sex,p1->English,p1->Java,p1->Sjjg,p1->Szdl,p1->Jsj);/*将学生信息写入文件*/fclose(fp); /*关闭文件*/printf("\n学生信息已成功保存到文件 students_list.txt 中！\n");getchar();}/*将信息导入文件并覆盖*/void fprint_(struct students *head){struct students *p1;if((fp=fopen("students_list.txt","w"))==NULL){printf("File open error!\n");exit(0);}for(p1=head;p1!=NULL;p1=p1->next) /*遍历*/fprintf(fp,"%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n", p1->Name,p1->Num,p1->Sex,p1->English,p1->Java,p1->Sjjg,p1->Szdl,p1->Jsj);/*将学生信息写入文件*/fclose(fp); /*关闭文件*/;getchar();}/*浏览全部学生信息*/void Browse(struct students *head){char Num[10]; /*字符型学生学号*/char Name[20]; /*字符型学生姓名*/char Sex[3]; /*字符型学生性别*/double English; /*双精度实型英语成绩*/double Java; /*双精度实型Java成绩*/double Sjjg; /*双精度实数据结构*/double Szdl; /*双精度实型数字电路*/double Jsj; /*计算机组成原理*/if((fp=fopen("students_list.txt","a+"))==NULL){printf("File open error!\n");exit(0);}printf("-------------------------------------------------------------\n");printf("姓名学号性别英语 Java 数据结构数字电路计算机\n");while(!feof(fp))/*读取并输出*/{fscanf(fp,"%s%s%s%lf%lf%lf%lf%lf",Name,Num,Sex,&English,&Java,&Sjjg,&Sz dl,&Jsj);printf("%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n",Name,Num,Sex,English,Java,Sjjg,Szdl,Jsj);};if(fclose(fp)){printf("Can not close the file!\n");exit(0);}}/*从tushu_list中读取数据构建链表*/struct students * create(struct students * head,int *n){FILE *fp;struct students*p,*p1,*p2;if((fp=fopen("students_list.txt","a+"))==NULL){printf("File open error!\n");exit(0);}while(!feof(fp)){(*n)++;p=(struct students *)malloc(sizeof(struct students));fscanf(fp,"%s%s%s%lf%lf%lf%lf%lf",p->Name,p->Num,p->Sex,&p->English,&p->Java,&p->Sjjg,&p->Szdl,&p->Jsj);if(head==NULL){head=p;p1=p;}else{p1->next=p;p2=p1;p1=p;}}p2->next=NULL;free(p);(*n)--;fclose(fp);return head;}/*按姓名查询学生信息*/void FindofName(struct students *head){int i=0,n=0;char b[20];struct students *p;head=create(head,&n);p=head;printf("\n请输入要查询的学生姓名：");scanf("%s",b);while(p!=NULL){if(strcmp(p->Name,b)==0){printf("姓名学号性别英语 Java 数据结构数字电路计算机\n");printf("%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n",p->Name,p->Num,p->Sex,p->English,p->Java,p->Sjjg,p->Szdl,p->Jsj);i++;}p=p->next;}if(i==0)printf("\n对不起！没有找到名为“%s”的学生信息！\n",b);}/*按学号查询学生信息*/void FindofNum(struct students *head){int i=0,n;char b[20];struct students *p;head=create(head,&n);p=head;printf("\n请输入要查询的学生学号：");scanf("%s",b);while(p!=NULL){if(strcmp(p->Num,b)==0){printf("姓名学号性别英语 Java 数据结构数字电路计算机\n");printf("%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n",p->Name,p->Num,p->Sex,p->English,p->Java,p->Sjjg,p->Szdl,p->Jsj);i++;}p=p->next;}if(i==0)printf("\n对不起！没有找到学号为“%s”学生信息！\n",b);}/*按英语成绩排序*/void SortEnglish(struct students * head){struct students *p,*tail; /*定义中间变量*/int n;double English;p=(struct students *)malloc(sizeof(struct students));head=create(head,&n);printf("姓名学号性别英语 Java 数据结构数字电路计算机\n");while(head->next!=NULL) /*利用选择法排序*/{tail=NULL;p=head;English=p->English; /*将链表中第一个成绩赋给English*/while(p!=NULL){if((p->English)>English)/*比较*/English=p->English;tail=p;p=p->next;}tail=NULL;p=head;while(p->next!=NULL){if(p->English==English){printf("%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n",p->Name,p->Num,p->Sex,p->English,p->Java,p->Sjjg,p->Szdl,p->Jsj);if(p==head)head=head->next;elsetail->next=p->next;}tail=p;p=p->next;}if(p->English==English){ /*分数相同时无需比较*/printf("%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n",p->Name,p->Num,p->Sex,p->English,p->Java,p->Sjjg,p->Szdl,p->Jsj);tail->next=NULL;}}p=head; /*将链表赋给结构体指针*/printf("%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n",p->Name,p->Num,p->Sex,p->English,p->Java,p->Sjjg,p->Szdl,p->Jsj);/*浏览排序后的信息*/printf("按英语成绩排序后输出如上（注：此过程不保存至文件）：\n");return;}/*按JAVA成绩排序*/void SortJava(struct students * head){struct students *p,*tail; /*定义中间变量*/int n;double Java;p=(struct students *)malloc(sizeof(struct students));head=create(head,&n);printf("姓名学号性别英语 Java 数据结构数字电路计算机\n");while(head->next!=NULL) /*利用选择法排序*/{tail=NULL;p=head;Java=p->Java; /*将链表中第一个成绩赋给Java*/while(p!=NULL){if((p->Java)>Java)/*比较*/Java=p->Java;tail=p;p=p->next;}tail=NULL;p=head;while(p->next!=NULL){if(p->Java==Java){printf("%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n",p->Name,p->Num,p->Sex,p->English,p->Java,p->Sjjg,p->Szdl,p->Jsj);if(p==head)head=head->next;elsetail->next=p->next;}tail=p;p=p->next;}if(p->Java==Java){ /*成绩相同时无需比较*/printf("%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n",p->Name,p->Num,p->Sex,p->English,p->Java,p->Sjjg,p->Szdl,p->Jsj);tail->next=NULL;}}p=head; /*将链表赋给结构体指针*/printf("%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n",p->Name,p->Num,p->Sex,p->English,p->Java,p->Sjjg,p->Szdl,p->Jsj);/*浏览排序后的信息*/printf("按Java成绩排序后输出如上（注：此过程不保存至文件）：\n");return;}/*按数据结构排序*/void SortSjjg(struct students * head){struct students *p,*tail; /*定义中间变量*/int n;double Sjjg;p=(struct students *)malloc(sizeof(struct students));head=create(head,&n);printf("姓名学号性别英语 Java 数据结构数字电路计算机\n");while(head->next!=NULL) /*利用选择法排序*/{tail=NULL;p=head;Sjjg=p->Sjjg; /*将链表中第一个成绩赋给Sjjg*/while(p!=NULL){if((p->Sjjg)>Sjjg)/*比较*/Sjjg=p->Sjjg;tail=p;p=p->next;}tail=NULL;p=head;while(p->next!=NULL){if(p->Sjjg==Sjjg){printf("%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n",p->Name,p->Num,p->Sex,p->English,p->Java,p->Sjjg,p->Szdl,p->Jsj);if(p==head)head=head->next;elsetail->next=p->next;}tail=p;p=p->next;}if(p->Sjjg==Sjjg){ /*成绩相同时无需比较*/printf("%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n",p->Name,p->Num,p->Sex,p->English,p->Java,p->Sjjg,p->Szdl,p->Jsj);tail->next=NULL;}}p=head; /*将链表赋给结构体指针*/printf("%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n",p->Name,p->Num,p->Sex,p->English,p->Java,p->Sjjg,p->Szdl,p->Jsj);/*浏览排序后的信息*/printf("按数据结构成绩排序后输出如上（注：此过程不保存至文件）：\n");return;}/*按数字电路排序*/void SortSzdl(struct students * head){struct students *p,*tail; /*定义中间变量*/int n;double Szdl;p=(struct students *)malloc(sizeof(struct students));head=create(head,&n);printf("姓名学号性别英语 Java 数据结构数字电路计算机\n");while(head->next!=NULL) /*利用选择法排序*/{tail=NULL;p=head;Szdl=p->Szdl; /*将链表中第一个成绩赋给Szdl*/while(p!=NULL){if((p->Szdl)>Szdl)/*比较*/Szdl=p->Szdl;tail=p;p=p->next;}tail=NULL;p=head;while(p->next!=NULL){if(p->Szdl==Szdl){printf("%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n",p->Name,p->Num,p->Sex,p->English,p->Java,p->Sjjg,p->Szdl,p->Jsj);if(p==head)head=head->next;elsetail->next=p->next;}tail=p;p=p->next;}if(p->Szdl==Szdl){ /*成绩相同时无需比较*/printf("%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n",p->Name,p->Num,p->Sex,p->English,p->Java,p->Sjjg,p->Szdl,p->Jsj);tail->next=NULL;}}p=head; /*将链表赋给结构体指针*/printf("%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n",p->Name,p->Num,p->Sex,p->English,p->Java,p->Sjjg,p->Szdl,p->Jsj);/*浏览排序后的信息*/printf("按数字电路成绩排序后输出如上（注：此过程不保存至文件）：\n");return;}/*按计算机组成原理排序*/void SortJsj(struct students * head){struct students *p,*tail; /*定义中间变量*/int n;double Jsj;p=(struct students *)malloc(sizeof(struct students));head=create(head,&n);printf("姓名学号性别英语 Java 数据结构数字电路计算机\n");while(head->next!=NULL) /*利用选择法排序*/{tail=NULL;p=head;Jsj=p->Jsj; /*将链表中第一个成绩赋给Jsj*/while(p!=NULL){if((p->Jsj)>Jsj)/*比较*/Jsj=p->Jsj;tail=p;p=p->next;}tail=NULL;p=head;while(p->next!=NULL){if(p->Jsj==Jsj){printf("%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n",p->Name,p->Num,p->Sex,p->English,p->Java,p->Sjjg,p->Szdl,p->Jsj);if(p==head)head=head->next;elsetail->next=p->next;}tail=p;p=p->next;}if(p->Jsj==Jsj){ /*成绩相同时无需比较*/printf("%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n",p->Name,p->Num,p->Sex,p->English,p->Java,p->Sjjg,p->Szdl,p->Jsj);tail->next=NULL;}}p=head; /*将链表赋给结构体指针*/printf("%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n",p->Name,p->Num,p->Sex,p->English,p->Java,p->Sjjg,p->Szdl,p->Jsj);/*浏览排序后的信息*/printf("按计算机组成原理成绩排序后输出如上（注：此过程不保存至文件）：\n");return;}/*按学号删除学生成绩信息*/struct students * Delete(struct students * head,char m[15]){struct students *ptr1,*ptr2;int n;printf("\n所有学生信息如下：\n");Browse(head);printf("\n请输入想要删除的学生学号：");scanf("%s",m);head=create(head,&n);if(head==NULL){printf("无学生信息！\n");return head;}if((strcmp(head->Num,m)==0)&&head!=NULL){ptr2=head;head=head->next;free(ptr2);}if(strcmp(head->Num,m)!=0){ptr1=head;ptr2=head->next;while(ptr2!=NULL){if(strcmp(ptr2->Num,m)==0){ptr1->next=ptr2->next;free(ptr2);}elseptr1=ptr2;ptr2=ptr1->next;}}fprint_(head);printf("\n学号为' %s '学生信息已被删除，并保存至文件！\n",m);return head;}/*修改学生信息（按编号修改）*/struct students * Revise(){int n=0,t;char num[10];char Num[10]; /*字符型学生学号*/char Name[20]; /*字符型学生姓名*/char Sex[3]; /*字符型学生性别*/double English; /*双精度实型英语成绩*/double Java; /*双精度实型Java成绩*/double Sjjg; /*双精度实数据结构*/double Szdl; /*双精度实型数字电路*/double Jsj; /*计算机组成原理*/struct students *head=NULL;struct students *p;printf("\n所有学生信息如下：\n");Browse(head);head=create(head,&n);printf("\n输入需要修改的学生的学号：");scanf("%s",num);p=head;while(head!=NULL){if(strcmp(p->Num,num)==0){system("cls");Revisemenu();printf("编号为%s的学生信息如下:\n",num);printf("姓名学号性别英语 Java 数据结构数字电路计算机\n");printf("%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t%.1lf\t%.1lf\n",p->Name,p->Num,p->Sex,p->English,p->Java,p->Sjjg,p->Szdl,p->Jsj);while(1){printf("请选择需要修改的信息:");scanf("%d",&t);switch(t){case 1:printf("请输入新姓名:");scanf("%s",Name);strcpy(p->Name,Name);break;case 2:printf("请输入新学号:");scanf("%s",&Num);strcpy(p->Num,Num);break;case 3:printf("请输入新性别:");scanf("%s",Sex);strcpy(p->Sex,Sex);break;case 4:printf("请输入新英语成绩:");scanf("%lf",&English);p->English=English;break;case 5:printf("请输入新Java成绩:");scanf("%lf",&Java);p->Java=Java;break;case 6:printf("请输入新数据结构成绩:");scanf("%lf",&Sjjg);p->Sjjg=Sjjg;break;case 7:printf("请输入新数字电路成绩:");scanf("%lf",&Szdl);p->Szdl=Szdl;break;case 8:printf("请输入新计算机组成原理成绩:");scanf("%lf",&Jsj);p->Jsj=Jsj;break;case 0:system("cls");menu();goto lab;break;default:printf("对不起，输入有误！");break;}}}elsep=p->next;}lab:fprint_(head);printf("修改完成，并储存至文件！\n");return head;}/*主函数*/void main(){int choice,ch;char m[15];struct students *head=NULL;secret();menu();while(1){printf("请输入选项：");scanf("%d",&choice);switch(choice){case 1:Input();break;case 2:system("cls");menu();Browse(head);break;case 3:system("cls");menu();FindofNum(head);break;case 4:system("cls");menu();FindofName(head);break;case 5:system("cls");Sortmenu();do{printf("请输入您的选择：");scanf("%d",&ch);switch(ch){case 1:system("cls");Sortmenu();SortEnglish(head);break;case 2:system("cls");Sortmenu();SortJava(head);break;case 3:system("cls");Sortmenu();SortSjjg(head);break;case 4:system("cls");Sortmenu();SortSzdl(head);break;case 5:system("cls");Sortmenu();SortJsj(head);break;}}while(ch!=0);system("cls");menu();break;case 6:system("cls");menu();Revise();break;case 7:system("cls");menu();head=Delete(head,m);break;case 0:system("cls");printf("\t\t欢迎下次再来！");exit(0);default:printf("对不起，输入有误！");break;}}return ;}。

学生录入成绩C语言代码,学生成绩管理系统C语言源代码.doc

学⽣录⼊成绩C语⾔代码,学⽣成绩管理系统C语⾔源代码.doc 学⽣成绩管理系统C语⾔源代码#include"stdio.h"#include#include#include"process.h"#include"ctype.h"typedef struct{char num[10];char name[10];int c;int math;int English;double aver;}Student;Student stu[99];int shuru(Student stud[],int n)/*输⼊若⼲条记录*/{int i=0;char sign,x[10];double a=0.0;while(sign!='n'&&sign!='N'){printf("输⼊学⽣学号:");scanf("%s",stu[n+i].num);printf("输⼊学⽣姓名:");scanf("%s",stu[n+i].name);printf("输⼊学⽣的C、数学、英语");scanf("%d%d%d",&stu[n+i].c,&stu[n+i].math,&stu[n+i].English);a=1.0*(stu[n+i].c+stu[n+i].math+stu[n+i].English/3);stu[n+i].aver=a;gets(x); /*清除多余的输⼊*/printf("是否继续输⼊?(Y/N):\n");scanf("%c",&sign);i++;}return(n+i);}void xianshi(Student stud[],int n) /*显⽰所有记录*/{int i ;printf("----------------------------------------------------------\n"); /*格式头*/printf("学号姓名 C 数学英语平均成绩 \n");printf("----------------------------------------------------------\n");for(i=0;i{printf("%-10s%-10s%-10d%-10d%-10d%-10.2lf\n",stu[i].num,stu[i].name,stu[i].c,stu[i].math,stu[i].English,stu[i].aver); }}void xiugai(Student stud[],int n) /*修改*/{int i=0,choice=1;char x[10];while(choice!=0){printf("请输⼊您要修改的学⽣的学号:\n");scanf("%s",x);for(i=0;;i++){if(strcmp(stu[i].num,x)==0)break;}printf("请选择您要修改的内容：\n");printf(" ---------------------- \n");printf("| 姓名请按 1 |\n");printf("| c 请按 2 |\n");printf("| 数学分数请按 3 |\n");printf("| 英语分数请按 4 |\n"); printf("| 退出请按 0|\n"); printf("+-----。