C语言程序[编程]

急求学生管理程序 要用C语言

答案：
#include<stdio.h>
#include<stdlib.h>
#include<string.h>

struct stud
{
long num;
char name[20];
double score;
};

typedef struct stucode
{
struct stud student ;
struct stucode *next;
}L;
void menu();
void createlist(struct stucode **r);
void out(struct stucode *r);
void search1(struct stucode *r);
void search2(struct stucode *r);
void del(struct stucode **r);
void insert(struct stucode **r);
void sort(struct stucode **r);

void main()
{
char choose;
int flag=1;
struct stucode *r=NULL;

while(flag)
{
system("cls");
menu();
choose=getchar();
switch(choose)
{
case '1':
createlist(&r);
out(r);
printf("Testing function 1\nPress any key to continue\n");
getchar();
getchar();
break;

case '2':
search1(r);
printf("Testing function 1\nPress any key to continue\n");
getchar();
getchar();
break;

case '3':
search2(r);
printf("Testing function 1\nPress any key to continue\n");
getchar();
getchar();
break;

case '4':
del(&r);
out(r);
printf("Testing function 1\nPress any key to continue\n");
getchar();
getchar();
break;

case '5':
insert(&r);
out(r);
printf("Testing function 1\nPress any key to continue\n");
getchar();
getchar();
break;

case '6':
sort(&r);
out(r);
printf("Testing function 1\nPress any key to continue\n");
getchar();
getchar();
break;

case '7':
out(r);
printf("Testing function 7\nPress any key to continue\n");
getchar();
getchar();
break;

case '0':
flag=0;
printf("The end.\n");
break;

default: printf("\nWrong Selection!(选择错误,请重选!)\n");getchar();getchar();
}
}
}
void createlist(struct stucode **r)
{
struct stucode *p,*t;
long n;
char a[20];
double s;
if(*r) *r=NULL;
printf(" \n请输入：\n 学号（请按学号升序排列） 姓名 分数 （若要结束请输入三个为零）\n");
scanf("%ld%s%lf",&n,a,&s);
if(n==0) return;

p=(L *)malloc(sizeof(L));
p->student.num=n;
strcpy(p->student.name,a);
p->student.score=s;
p->next=NULL;
*r=p;

scanf("%ld%s%lf",&n,a,&s);
你的要求是什么？不说出怎么给你出主意呢
#include"stdio.h"
#include"stdlib.h"
#include"conio.h"
struct student
{
   int no;
   char name[20];
   float score[2];
   float avg;
};

struct student input();
int display(struct student [],int);
int sort(struct student [],int);
int find(struct student [],int,int);
int query(struct student [],int);
int update(struct student [],int);
int remove(struct student [],int*);

int main()
{
    struct student stu[20];
    int count=0;
    char sel='1',flag;
    while( sel != '7')
    {
      system ("cls");
      printf("-------------学员信息管理系统-------------\n");
      printf("1.录入\n2.显示\n3.排序\n4.查询\n5.修改\n6.删除\n7.退出\n");
      printf("\n请选择");
      sel=getchar();
      switch(sel) 
      {
         case '1':
              system("cls");
              do
              {
                 stu[count]=input();
                 count++;
                 printf("\n是否继续(y/n):");
                 fflush(stdin);
                 flag=getchar();
                 }
                 while(flag=='y'||flag=='Y');
                 break;
         case '2':
              display(stu,count);
              break;
         case '3':
              sort(stu,count);
              break;
         case '4':
              query(stu,count);
              break;
         case '5':
              update(stu,count);
              break;
         case '6':
              remove(stu,&count);
              break;
         }
      }
    }
                  
   
                   

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