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user.c
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95 lines (94 loc) · 2 KB
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//提供了可以清空用户数据的功能
#include<stdio.h>
#include<stdlib.h>
#include<conio.h>
#include<Windows.h>
struct atm
{
int user;
char password[6];
float money;
char name[10];
int style;
char tim[20];
};
struct atm date[100];
int i=0,j,k,d=0,c;
char ch,b[6];
main()//数据储存 读取 注册
{
int number,f=1;
char pass;
FILE*name,*num;
if((name=fopen("user.dat","r+"))==NULL)
{
printf("user文件创建");
if((fopen("user.dat","a+"))==NULL)
{
printf("失败");
_getch();
exit(0);
}
else
printf("成功");
}
if((num=fopen("num.dat","r+"))==NULL)
{
printf("创建num文件");
if((num=fopen("num.dat","a+"))==NULL)
printf("失败");
else
{
printf("成功");
fputc(0,num);//重置用户数量
fclose(num);
}
_getch();
exit(0);
}
number=fgetc(num);
printf("%d",number);
for(i=0;i<number;i++)
fread(&date[i],sizeof(struct atm),1,name);
for(i=0;i<number;i++)
{
printf("用户信息:姓名:%s 开卡银行:",date[i].name);
switch(date[i].style)
{
case 1:puts("中国工商银行");break;
case 2:puts("中国建设银行");break;
case 3:puts("中国人民银行");break;
case 4:puts("中国银行");break;
case 5:puts("中国农业银行");break;
case 6:puts("西安银行");break;
case 7:puts("兰州银行");break;
case 8:puts("光大银行");break;
}
printf("账号:%d 密码:%s 余额:%f\n",date[i].user,date[i].password,date[i].money);
printf("开卡时间:%s",date[i].tim);
}
printf("输入c清空数据");
if(_getch()=='c')
{
int a=MessageBox(NULL,"是否确认要清空全部数据","警告",MB_OKCANCEL);
if (a==IDOK)
{
if((num=fopen("num.dat","w+"))==NULL)
printf("num清除失败");
else
{
printf("num清除成功");
fputc(0,num);//重置用户信息
}
if((fopen("user.dat","w+"))==NULL)
printf("user清除失败");
else
{
printf("user清除成功");
fputc(0,num);//重置用户信息
}
}
}
fclose(name);
fclose(num);
}