const readline = require('readline-sync')//引用readline-synclet s = 2;//错误的次数for (let i = 0; i < 3; i++) {console.log('请输入名：(由英文组成)');let user = readline.question();console.log('请输入密码：(由数字组成)');let password = readline.question();let arr = ['yang', '123456'];

if (user == arr[0] && password == arr[1]) {console.log('欢迎您，登陆成功');for (let yewu = 1; yewu >= 1; yewu++) {console.log('请选择业务：\n1.存款： \n2.取款： \n3.查看： \n4.退出：');let yewu = readline.question() - 0;let money = 3000;if (yewu > 4) {console.log('对不起你输入的有误，请重新输入：')continue;}switch (yewu) {case 1://存款money2为钱变化后的总数console.log('存款');console.log('请输入存款金额：');let cunkuan = readline.question() - 0;money2 = money + cunkuan;console.log('系统正在为你存钱请稍等。。。。。\n存钱成功您当前余额为' + money2);continue;case 2:console.log('取款');console.log('请输入取款金额：');let qukuan = readline.question() - 0;if (qukuan > money2) {console.log('对不起你的余额不足！，您的余额不足，请重新输入或者退出');} else {money2 = money2 - qukuan;console.log('当前余额为：' + money2);}continue;case 3:console.log('查看');console.log('当前你的余额为：' + money2);continue;case 4:console.log('退出');console.log('欢迎你下次使用！');break;}break;}break;} else {//输入不正确时if (s != 0) {console.log('密码或账户名错误，您还有' + s + "次机会,请重新输入：");s--;continue;} else {console.log('对不起，账户已锁定！');break;}}}