下面模仿下ATM取款机，有钱真好！！！

输入密码正确后可以：取款，存款，退出

[cpp]
#include
/*
模仿ATM取款程序
*/
int strCompare(char *,char *);
int accountVerify();
void accountOperate();

void simulateOfATM()
{
if(accountVerify())
accountOperate();
printf("GOODBYE\n");
}
//不使用自带的strcmp，自己写个玩玩
int strCompare(char *str1,char *str2)
{
while(*str1&&*str2&&(*str1==*str2))
//while(*str1!='\0'&&*str2!='\0'&&(*str1==*str2))//这个效率低点，不过容易理解
{
str1++;
str2++;
}
return *str1-*str2;
}
//通行验证 www.2cto.com
int accountVerify()
{
char password[50];//我就不信你们的密码超过50, 30倒是见过
char pwd[10]={"abc"};
int pwdCount=0;//记录密码输入次数，不能超过3次
do{
printf("please input your password or press ENTER to break: \n");
gets(password);
if(!strCompare(password,"\0")){
break;
}
if(strCompare(password,pwd)){//密码错误
printf("PASSWORD ERROR !!!\n");
pwdCount++;
}
else
{
return 1;
}

}while(pwdCount<3);
if(pwdCount>=3)
printf("input count has outnumber,good bye!!\n");//输入超过限制
else printf("GOODBYE\n");
return 0;
}
//账户操作
void accountOperate()
{
int operate,initMoney=100;//初始账户值：100
int oprateMoney = 0;//操作金额数
do{
printf("the amount of your card is: %d\n",initMoney);
printf("*********** ACCOUNT OPERATE***************\n");
printf("* 1: get money *\n");
printf("* 2: deposite *\n");
printf("* 3: exit *\n");
printf("******************************************\n");
printf("please select a operate: ");
scanf("%1d",&operate);
switch(operate)
{
case 1:
printf("how much whould you like to get: ");
scanf("%d",&oprateMoney);
if(oprateMoney<=0||oprateMoney>initMoney)//如果输入金额小于等于0或者大于账户余额
{
printf("输入错误或者余额不足!!\n");
continue;
}
initMoney -= oprateMoney;
printf("￥%d 正在吐钞,请笑纳………\n",oprateMoney);
continue;
case 2:
printf("how much whould you like to put: ");
scanf("%d",&oprateMoney);
initMoney += oprateMoney;
printf("press any key to go back");
continue;
case 3:
default:
return;
}
}while(1);
}