1 const readline = require(`readline-sync`)//引用readline-sync 2 let arr = [[`zhang`, `123`, 2000], [`yang`, `123456`, 3000]]; 3 //登陸 4 let add = function () { 5 let s = 2;//輸入錯誤的次數 6 while (true) { 7 console.log(`請輸入使用者名稱:`); 8 let user = readline.question(); 9 console.log(`請輸入密碼:`); 10 let password = readline.question(); 11 for (let i = 0; i < arr.length; i++) { 12 if (user === arr[i][0] && password === arr[i][1]) { 13 console.log(`歡迎你,登陸成功`); 14 mean(i); 15 return; 16 } 17 } 18 //輸入不正確,超過三次 19 if (s != 0) { 20 console.log(`密碼或賬戶有誤,你還有${s}次機會,請重新輸入!`); 21 s--; 22 23 } else { 24 console.log(`對不起,賬戶鎖定!`); 25 break; 26 } 27 } 28 } 29 //存款 30 let fn1 = function (i) { 31 32 console.log(`存款`); 33 console.log(`請輸入存款金額:`); 34 let cunkuan = readline.question() - 0; 35 arr[i][2]+= cunkuan; 36 console.log(`系統正在為你存錢請稍等。。。。。 存錢成功您當前餘額為` + arr[i][2]); 37 } 38 //取款 39 let fn2 = function (i) { 40 console.log(`取款`); 41 console.log(`請輸入取款金額:`); 42 let qukuan = readline.question() - 0; 43 if (qukuan > arr[i][2]) { 44 console.log(`對不起你的餘額不足!,請重新輸入金額或者退出`); 45 } else { 46 arr[i][2] = arr[i][2] - qukuan; 47 console.log(`正在為你取錢。。。。。 您當前餘額為:` + arr[i][2]); 48 } 49 } 50 //檢視 51 let fn3 = function (i) { 52 console.log(`檢視`); 53 console.log(`正在查詢。。。。 您當前的餘額為:` + arr[i][2]); 54 } 55 56 //退出 57 58 let fn4 = function () { 59 console.log(`退出`); 60 console.log(`歡迎你下次使用!`); 61 } 62 63 //流程 64 let mean = function (i) { 65 for (let yewu = 1; yewu >= 1; yewu++) { 66 console.log(`請選擇業務: 1.存款: 2.取款: 3.檢視: 4.退出:`); 67 let yewu = readline.question() - 0; 68 switch (yewu) { 69 case 1: 70 fn1(i); 71 continue; 72 case 2: 73 fn2(i); 74 continue; 75 case 3: 76 fn3(i); 77 continue; 78 case 4: 79 fn4(); 80 return; 81 }break; 82 } 83 } 84 add();