1 <!DOCTYPE html> 2 <html> 3 <head lang="en"> 4 <meta charset="UTF-8"> 5 <title></title> 6 </head> 7 <body> 8 <script> 9 var tel=parseInt(prompt("====欢迎使用电话银行==== "+"查询请按1 "+"取款请按2 "+"转账请按3 "+"退出请按0 ")); 10 switch(tel){ 11 case 0: 12 console.log("退出.........."); 13 break; 14 case 1: 15 console.log("余额查询中...."); 16 break; 17 case 2: 18 console.log("取款进行中...."); 19 break; 20 case 3: 21 console.log("转账进行中...."); 22 break; 23 default : 24 cosole.log("你的输入有误..."); 25 break; 26 } 27 </script> 28 </body> 29 </html>