void query()
{
char name[18];
do
{
printf("请输入查询卡的卡号:");
scanf("%s",name);
printf("请输入使用次数:");
scanf("%d",&card.nUseCount);
}while (strcmp(name, card.aName)!=0);
printf("卡号:%s",card.aName);
printf("卡号\t密码\t状态\t开卡金额\t开卡时间\t\n");
printf("%s\t%s\t%d\t%f\t%s\t\n",card.aName,card.aPwd,card.nDel,card.fBalance,asctime(ttime));
}

struct Card
{
char aName[18];
char aPwd[8];
int aStatus;
time_t tStart;
time_t tEnd;
float fTotaluse;
time_t tLast;
int nUseCount;
float fBalance;
int nDel;
}card;

void add()
{
int x=0;
card.tStart=time(NULL);
ttime=localtime(&card.tStart);
printf("请输入卡号（18位）:");
do
{
scanf("%s",card.aName);
if(strlen(card.aName)<=18&&strlen(card.aName)>=1)
x=1;
else
continue;
}while(x==0);
x=0;
printf("请输入密码（8位）:");
do
{
scanf("%s",card.aPwd);
if (strlen(card.aPwd)<=8&&strlen(card.aPwd)>=1)
x=1;
else
continue;
}while (x==0);
printf("请输入开卡金额:");
scanf("%f",&card.fBalance);
printf("－－－－－添加卡的信息如下－－－－－\n");
printf("卡号\t密码\t状态\t开卡金额\t开卡时间\t\n");
printf("%s\t%s\t%d\t%f\t%s\t\n",card.aName,card.aPwd,card.nDel,card.fBalance,asctime(ttime));
}

#include <stdio.h>
#include <time.h>
struct tm *ttime;
#include "struct.h"
#include "Header.h"
#include "query.h"
void outputmenu();
int main(void)
{
int nSelection;
printf("欢迎进入计费管理系统\n");
printf("\n");
do
{
outputmenu ();
scanf("%d",&nSelection);
switch (nSelection)
{
case 1:printf("1.添加卡\n");add();break;
case 2:printf("2.查询卡\n");query();break;
case 3:printf("3.上机\n");break;
case 4:printf("4.下机\n");break;
case 5:printf("5.充值\n");break;
case 6:printf("6.退费\n");break;
case 7:printf("7.查询统计\n");break;
case 8:printf("8.注销卡\n");break;
default:printf("退出");break;
}
}
while (nSelection!=0);
return 0;
}
void outputmenu()
{
printf("------菜单------\n");
printf("1.添加卡\n");
printf("2.查询卡\n");
printf("3.上机\n");
printf("4.下机\n");
printf("5.充值\n");
printf("6.退费\n");
printf("7.查询统计\n");
printf("8.注销卡\n");
printf("0.退出\n");
printf("请选择菜单项编号：");
}