#include<stdio.h>
#define PAUSE printf("\n 按任意鍵繼續(xù)...");getch();
#define len sizeof(struct student)
#define null 0

struct student
{double num;
 char name[10];
 int class;
 float score[5];
 struct student *next;
};
struct student *head=null;
struct student *p1,*p2;
int n=0; /*n為結(jié)點(diǎn)個(gè)數(shù)*/
char *subject[]={"英語(yǔ)","高等數(shù)學(xué)","C語(yǔ)言","物理","法律"}; /*定義成績(jī)科目*/

main()  /*主函數(shù)*/
{float temp;
char menu;
menu='1';
while(menu!='0')
{clrscr();
 printf("\n\n\n\n\n\n");
 printf("                       學(xué)生成績(jī)管理系統(tǒng)\n");
 printf("              *******^_^******************^_^*******\n");
 printf("                  1.創(chuàng)建新的成績(jī)記錄.\n");
 printf("                  2.查詢已有的記錄.\n");
 printf("                  3.修改成績(jī)記錄.\n");
 printf("                  4.導(dǎo)入已存在的記錄.\n");
 printf("                  5.統(tǒng)計(jì)所有記錄.\n");
 printf("                  6.列出所有記錄.\n");
 printf("                  0.退出.\n");
 printf("              *******^_^******************^_^*******\n");
 printf("                           請(qǐng)選擇按鍵(0-6)操作:");
 scanf(" %c",&menu);
  switch(menu)
  {case '1':input();break;
   case '2':search();break;
   case '3':modify();break;
   case '4':load();break;
   case '5':gather();break;
   case '6':show_all();break;
   case '0':menu='0';break;
   default:printf("\n 輸入超出范圍，請(qǐng)鍵入0-6.\n\n");
           PAUSE;
  }
 }
}