JavaScript-switch-case运用-案例

 1 <!DOCTYPE html>
 2 <html>
 3 <head lang="en">
 4     <meta charset="UTF-8">
 5     <title></title>
 6 </head>
 7 <body>
 8 <script>
 9     function showFood(){
10         var date=Number(prompt("今天星期几"));
11         switch(date){
12             case 1:
13                 console.log("今天炖牛肉");
14                 break;
15             case 2:
16                 console.log("今天土豆炖牛肉");
17                 break;
18             case 3:
19                 console.log("今天牛肉炖柿子");
20                 break;
21             case 4:
22                 console.log("今天牛肉炖萝卜");
23                 break;
24             case 5:
25                 console.log("今天香菇炖小鸡");
26                 break;
27             case 6:
28                 console.log("今天星期六放假");
29                 break;
30             case 7:
31                 console.log("今天星期天放假");
32                 break;
33             default:
34                 console.log("您的输入有误");
35                 break;
36         }
37     }
38 </script>
39 <button onclick="showFood()">今天优惠套餐</button>
40 </body>
41 </html>
swirch-case的结束机制
1、碰到break结束
2、整个执行完毕结束