C语言实现的成绩管理与查询系统

C语言编写的简单学生成绩管理系统



#include "stdio.h"
#include "stddef.h"
#include "stdlib.h"
#include "conio.h"    /*屏幕操作函数*/
#include "string.h"
#define MAX 10
typedef struct student{
      char name[MAX];
      char num[MAX];
      char sex[MAX];
      int   age;
      int chinese;
      int mathematic;
      int english;
      float aver;
      struct student *next;
     }stu;
stu *head;
void print()                                         /*输出菜单*/
{
    textcolor(RED);    /*设置文本显示颜色为红色*/
    textbackground(GREEN);    /*设置背景颜色为绿色*/
    window(1,1,80,10);        /* 制作显示菜单的窗口*/
     clrscr();
printf("          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n");

printf("          ************ welcome to use student manage *****************\n");
printf("          ***********************   MENU   *****************************\n");
printf("          *****    <1>Enter Record     ");                /*录入信息*/
printf(" <2>Statistics               *****\n");                 /*显示成绩*/
printf("          *****    <3>Quest            ");                 /*查询*/
printf(" <4>Updata                   *****\n");                  /*修改*/
printf("          *****    <5>Save              ");                /*保存到磁盘*/
printf("<6>Display                  *****\n");                  /*统计成绩*/
printf("          *****    <7>Fresh             ");                /*刷新*/
printf("<8>Quit                     *****\n");                    /*退出系统*/
printf("          $$$$$$ Maker: zhangwantong Class:045 Date:2007.01.12 $$$$$$$\n");
printf("          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n");
}

void cin(stu *p1)                                   /*录入学生信息 */
{ printf("Enter name:\n");
     scanf("%s",p1->name);
    printf("Enter num:\n");
      scanf("%s",p1->num);
     printf("Enter sex:\n");
      scanf("%s",&p1->sex);
   printf("Enter age:\n");
      scanf("%d",&p1->age);
   printf("Enter score:\n");
    printf("Enter chinese:\n");
      scanf("%d",&p1->chinese);
   printf("Enter math:\n");
     scanf("%d",&p1->mathematic);
   printf("Enter English:\n");
    scanf("%d",&p1->english);