学生评教管理系统

#include<string>#include<ctime>#include<iostream>#include<conio.h>#include<fstream>#include<math.h>using namespace std;int s=0;int u=0;class teacher;class student{public:void resetsno(int);void inputst(char * ,char *,int,int,char *,long);void outputst(int);int checkst(int);void findst(int);void deletest(int);void resortst(int);void coverst(int);int getsno(int);void lessoninput(int);int outtofile1(int);student student::operator=(student &s1);double value(teacher &te);protected:char name[20];char sex[20];int age;int sno;long tel;char banji[50];char lesson[10][50];//用二维的字符数组存储学生所学的课程};class teacher{public:double resetscore(double,int);teacher teacher::operator=(teacher &t1);void resetworkno(int);void inputte(char *,char *,int,char *,char *,int);void outputte(int);int checkte(int);void findte(int);void deletete(int);void resortte(int);void resort(int);void coverte(int);int getworkno(int);int outtofile2(int);double getscore(int);friend double student::value(teacher &te);//友元成员。

声明类student的value作为类teacher的友元函数。

protected:char name[20];char sex[20];int age;int workno;char les[50];char dep[50];double score;};student stu[50];teacher tea[10];int student::getsno(int s){return stu[s].sno;}void student::resetsno(int s){cin>>stu[s].sno;}student student::operator=(student &s1)//用成员函数来实现赋值运算符的重载。

{strcpy(name,);sno=s1.sno;strcpy(banji,s1.banji);strcpy(sex,s1.sex);age=s1.age;tel=s1.tel;for(int i=0;i<10;i++)strcpy(lesson[i],s1.lesson[i]);return *this;}void student::inputst(char *xm ,char *xb,int nl,int xh,char *bj,long dh){strcpy(stu[s].name,xm);strcpy(stu[s].sex,xb);stu[s].age=nl;while (xh<100||xh>999) //判断输入的学号是否正确{cout<<"您输入的学号不正确,请输入一个三位数的学号"<<endl;cin>>xh;while(checkst(xh)){cout<<"学号重复!请重新输入:"<<endl;cin>>xh;}}stu[s].sno=xh;strcpy(stu[s].banji,bj);stu[s].tel=dh;}void student::lessoninput(int s){int n;cout<<"请输入该学生本学期一共学习的课程数:";cin>>n;for(int i=0;i<n;i++){cout<<"这是本学期第"<<i+1<<"门课程:";cin>>stu[s].lesson[i];}}void student::outputst(int s){cout<<"学生的姓名是:"<<stu[s].name<<endl;cout<<"学生的性别是:"<<stu[s].sex<<endl;cout<<"学生的学号是:"<<stu[s].sno<<endl;cout<<"学生的年龄是:"<<stu[s].age<<endl;cout<<"学生的班级是:"<<stu[s].banji<<endl;cout<<"学生的联系电话是:"<<stu[s].tel<<endl;cout<<"学生本学期所学课程有:";for(int i=0;i<10;i++)cout<<"\t"<<stu[s].lesson[i];}double teacher::getscore(int u){return tea[u].score;}void teacher::resetworkno(int u){cin>>tea[u].workno;}int teacher::getworkno(int u){return tea[u].workno;}void teacher::inputte(char *xm,char *xb,int nl,char *yb,char *kc,int gh) {strcpy(tea[u].name,xm);strcpy(tea[u].sex,xb);tea[u].age=nl;while (gh<10000||gh>99999) //判断输入的学号是否正确{cout<<"您输入的工号不正确,请输入一个五位数的工号"<<endl;cin>>gh;while(checkte(gh)){cout<<"工号重复!请重新输入:"<<endl;cin>>gh;}}tea[u].workno=gh;strcpy(tea[u].dep,yb);strcpy(tea[u].les,kc);}void teacher::outputte(int u){cout<<"教师的姓名是:"<<tea[u].name<<endl;cout<<"教师的性别是:"<<tea[u].sex<<endl;cout<<"教师的年龄是:"<<tea[u].age<<endl;cout<<"教师的工号是:"<<tea[u].workno<<endl;cout<<"教师的院部是:"<<tea[u].dep<<endl;cout<<"教师所教授的课程是:"<<tea[u].les<<endl;}double student::value(teacher &te){int n=0;double sum=0;for(int i=1;i<=s;i++){int m=0;for(int j=0;j<10;j++){if(strcmp(stu[i].lesson[j],te.les)==0)//只有当学生学习了教师教授的课程才可以对教师进行评教{n++;m++;cout<<stu[i].name<<"同学:";cout<<"请输入你对该教师的评分是:";cin>>te.score;sum+=te.score;}}if(m==0){cout<<stu[i].name<<"同学:";cout<<"你没有学习该教师的课程!不能对其进行评分。

"<<endl;}}if(n==0){cout<<"没有学生对该教师进行评分。

"<<endl;return 0;}elsecout<<"有"<<n<<"个学生对该教师进行了评分。

"<<endl;return sum/n;}int student::checkst(int xh1)//检查{int m=0;while(m<=s+1)if(xh1==stu[m++].sno)break; //拒绝重复学号if(m>s+1)return 0;elsereturn 1;}int student::outtofile1(int s){ofstream fout("D:\\student.txt",ios::app);if(!fout){cout<<"文件打开失败!"<<endl;return 1;}fout<<stu[s].name<<" "<<stu[s].sex<<" "<<stu[s].age<<" "<<stu[s].sno<<" "<<stu[s].banji<<" "<<stu[s].tel<<" ";for(int i=0;i<10;i++)fout<<stu[s].lesson[i]<<" ";fout.close();return 0;}void student::findst(int s) //按学号查找模块{int xh,p;while(s==0){cout<<"没有记录，请先输入记录！"<<endl;break;}if(s!=0)cout<<"请输入您要查找的学号:";cin>>xh;while (xh<100||xh>999){cout<<"您输入的学号不正确,请您输入一个三位数的学号"<<endl;cin>>xh;while(checkst(xh)){cout<<"学号重复!请重新输入:"<<endl;cin>>xh;}}while(s!=0) //查找是否有符合条件的记录{if (xh==stu[s].sno){p=1;outputst(s);cout<<endl;getch();break;}elsep=0;s--;}if(p==0) //用p标记是否有查找的对象。