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);
printf("\n");
}
}
int sum(studentLinkPoint p)
{
studentLinkPoint temp;
int i;
if(p->next!=0)
{
sum(head);
}
if(flag)
{
temp=head->next;
for (;temp!=0;temp=temp->t)
{
temp->student->avg=temp->student->sum/M;
}
}
}
void disAvgSum(studentLinkPoint head)
{
if((*end)->next==0)
{
(*end)->next=temp;
(*end)=temp;
flag=0;
return head;
}
else
{
return 0;
}
}
studentLinkPoint input()
{
studentLinkPoint temp=(studentLinkPoint)malloc(sizeof(stuLink));
{
studentLinkPoint temp=head->next;
avg(head);
if(flag)
{
printf(" 姓名 学号 总分 平均分\n");
void writeStu(studentLinkPoint);//写入文件
int readStu();//读入文件
void create();//检查文件
/************************************************************************/
{
printf("%-10s%-10s ",p->student->name,p->student->number);
while(i<M)
{
printf("%4.1f ",p->student->score[i]);
i++;
}
i=0;
if(flag)
{
free(head);
head=end=0;
}
else
{
q=p->next;
while (q->next)
{
p=q;
q=q->next;
free(p->student->name);
free(p->student->number);
strcpy(temp->student->name,name);
printf("\n输入学生的学号:");
scanf("%s",number);
temp->student->number=(char *)malloc(sizeof(char)*(strlen(number)+1));
#include "stdio.h"
#include "string.h"
#define M 3
#define error(FOUND) printf("内存不足,在函数 "FOUND"\n")
typedef struct Student
{
char *name;
char *number;
printf("\n");
temp->next=0;
return temp;
}
void menu()
{
static int c;
system("color 2f");
printf("\n%-15c1、输入学生信息. ",' ');
printf("%-5c5、修改学生信息.\n\n",' ');
{
temp=p->next;
}
else
{
printf("没有数据\n");
return 0;
}
for (temp->student->sum=0;temp!=0;temp=temp->next)
{
temp->student->sum=0;
for (i=0;i<M;i++)
void delstudent(studentLinkPoint,char *);//删除一个学生
void change(studentLinkPoint,char *);//修改一个学生
void search(studentLinkPoint,char *);//查找一个学生
void paixu(studentLinkPoint head);//排序姓名
{
(*p)=(studentLinkPoint)malloc(sizeof(stuLink));
(*p)->next=0;
(*p)->student=0;
end=(*p);
flag=0;
}
studentLinkPoint insert(studentLinkPoint temp,studentLinkPoint *end)
printf("你输入的信息如下:\n");
printf("姓名:%-15s学号:%-15s%d门课程分数: ",temp->student->name,temp->student->number,M);
for(i=0;i<M;i++)
printf("%3.1f ",temp->student->score[i]);
{
case 1:
insert(input(),&end);
system("pause");
break;
case 2:
display(head);
system("pause");
break;
case 3:
disAvgSum(head);
system("pause");
float score[M];
float avg;
float sum;
}* studentPint,studentNod;
typedef struct STULink
{
studentPint student;
struct STULink *next;
}* studentLinkPoint,stuLink;
free(p->student);
free(p);
}
free(q->student->name);
free(q->student->number);
free(q->student);
free(q);
end=0;
free(head);
}
}
studentLinkPoint head;//表头指针
int flag;//判断是否求和