简单的姓名号码查询系统

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
struct student    //定义结构体
{
    char name[7];   //姓名
    int number;     //号码
}student,student1;
void menu()    //显示栏
{
    printf("***********************\n");
    printf("1 input record\n");
    printf("2 search record\n");
    printf("0 quit system\n");
}
void save()  //输入函数
{
   FILE *fp;
    system("cls");  //清屏
    fp=fopen("filename","a+");
    if(fp==NULL)
    {
        printf("open file error");
        exit(1);
    }
    while(1)
    {
        scanf("%s%d",student.name,&student.number);   //输入姓名及号码
        fwrite(&student,sizeof(struct student),1,fp);
        printf("continue?(y/n)");  //是否继续
        getchar();
        if(getchar()=='n')  break;
    }
    fclose(fp);
    exit(0);
}
void search()//查找函数
{

     FILE *fp;
     char name[7];
    system("cls");//清屏
    if((fp=fopen("filename","r"))==NULL)
    {
        printf("open the file error");
        exit(1);
    }
    printf("please int your name\n");
    scanf("%s",name);
    while(fread(&student1,sizeof(struct student),1,fp)==0)//查找
    {
        if(strcmp(student1.name,name)==0)
        {
            printf("%s  %d",student1.name,student1.number);//显示所查找的姓名以及号码
            break;
        }
    }
    if(feof(fp))//检测文件指针指向文件是否结束
    {
        printf("search fail");//若结束则输出查找失败
        exit(0);
    }
}
int main()//主函数
{
    int select;
    menu();//显示主菜单
    printf("\nPlease enter your select\n");
    scanf("%d",&select);
    while(select)
    {
        switch(select)
        {
            case 1:save();break;
            case 2:search();break;
            case 0:exit(1);
        }
    }
}