d3_3 ATM模拟系统

#include<stdio.h>
#include<stdlib.h>
int x;//保存客户ID（index值）

void login();   //登录
void menu();    //菜单
void deposit(); //存款
void withdraw();//取款
void check();   //查询
void quit();      //退卡

struct User
{
    char name[10];
    int account;
    short password;
    int money;
}
user[4]={
    {"Tom",1,1,400},
    {"Mike",2,2,700},
    {"Jake",3,3,500},
    {"Helen",4,4,800}, 
};

void  main(){
    
printf("***********欢迎使用取款机系统************\n");
printf("***************************************\n");

login();

}

void login ()
{
  int a; 
  int account;
  short password;
  printf("Please Enter Your Account ID:");
  scanf("%d",&account);
  for(a=0;a<=9;a++)  //遍历user[]
  {
      if(account==user[a].account)
      {
          x=a;   
          
          
          printf("Please Enter Your Pssword:");
          scanf("%d",&password);
          if(password==user[x].password)
          {
            printf("*********Welcome %s*******\n",user[x].name);
            printf("***********************\n");
            printf("Please Selsct Operation NUM:");
            menu();
            break;
          }
          else {
               printf("Wrong Password\n");
               login();
             }
      }
  }
}

void menu()
{
  int n;
  int operatorNum=0;
  printf("\nCheck************1\n");
  printf("Withdraw*********2\n");
  printf("Deposit**********3\n");
  printf("Quit*************4\n");  
  while(operatorNum!=4)
  {
    printf("Please Select Operation NUM:");
    scanf("%d",&n);
    switch(n)
    {
        case 1:check();break;
        case 2:withdraw();break;
        case 3:deposit();break;
        case 4:quit();break;
        default:printf("Wrong operator\n");
        

    }
  
  }
}
//查询
void check()
{
    printf("%s Your  balance is %d RMB:\n",user[x].name,user[x].money);
    
}

//取款
void withdraw()
{
    int a;
    printf("Pease Enter Amount:");
    scanf("%d",&a);
    
    if(a>user[x].money)
    printf("Sorry InSufficient Balance!\n");
    else
    {
        user[x].money=user[x].money-a;
        printf("You have take %d RMB,Your balance is %d RMB\n",a,user[x].money);
          
    }
}
// 存款
void deposit()
{
    int a;
    printf("Pease Enter Amount:");
    scanf("%d",&a);
    user[x].money=user[x].money+a;
 printf("You have deposited %d RMB, Your balance is %d RMB\n",a,user[x].money);
}
// 退卡
void quit()
{
    
    system("cls"); // 清屏
    main();  //返回主页面，从新登录



}