#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}