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#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <windows.h>
#include <iostream>
using namespace std;
class student{
private:
 char name[20],addr[40];
 char id_number[40],phone[20];
public:
 void searchstud_info();
 void addstud_info();
 void delstud_info();
 void showstud_info();
};
student stud[1000];
static int i = 0;
void main()
{
   int choose;
   student stu1;
   while(1)
   {
    system("cls");
    printf("\t*****************************************************\n");
    printf("\t\t1.Ôö¼ÓÈËÔ±ÐÅÏ¢\n");
    printf("\t\t2.ÏÔʾÈËÔ±ÐÅÏ¢\n");
    printf("\t\t3.²éÕÒÈËÔ±ÐÅÏ¢\n");
    printf("\t\t4.ɾ³ýÈËÔ±ÐÅÏ¢\n");
    printf("\t\t0.Í˳öϵͳ\n");
    printf("\t*****************************************************\n");
    printf("\tÊäÈëÄúµÄÑ¡Ôñ:");
    scanf("%d",&choose);
    switch(choose)
    {
       case 1: stu1.addstud_info();break;
    case 2: stu1.showstud_info();break;
    case 3: stu1.searchstud_info();break;
    case 4: stu1.delstud_info();break;
    case 0: printf("Çë°´ÈÎÒâ¼üÍ˳ö....");
         exit(0);
    }
   }
}
void student::addstud_info()
{
 printf("ÇëÊäÈëÈËÔ±ÐÕÃû:");
 scanf("%s",stud[i].name);
 printf("\nÇëÊäÈëÈËÔ±Éí·ÝÖ¤ºÅ:");
 scanf("%s",stud[i].id_number);
 printf("\nÇëÊäÈëÈËÔ±µç»°ºÅÂë:");
 scanf("%s",stud[i].phone);
 printf("\nÇëÊäÈëÈËÔ±µØÖ·:");
 scanf("%s",stud[i].addr);
 i++;
}
void student::showstud_info()
{
 int j;
 if(i==0)
 printf("\tÔÝʱͨѶ¼Öл¹Î´ÓмǼ!\n");
 fo


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