Js创建对象

Js创建对象与构造函数的继承关系

 1 <!DOCTYPE html>
 2 <html>
 3 <head>
 4 <meta charset="UTF-8">
 5 <title>Insert title here</title>
 6 <script type="text/javascript">
 7     window.onload = function(){
 8         function Super(){
 9             this.s='岁';
10             this.f=function(){
11                 return '岁';
12             }
13         }
14         function Person() {
15             Super.call(this)
16             this.name='张三';
17             this.chinese='98';
18             this.math='80';
19         }
20         function Student(){
21             Person.call(this);
22             this.age=25;
23             this.info=function(){
24                 return '姓名：'+this.name+'<br>语文：'+this.chinese+'<br>数学：'+this.math+'<br>年龄：'+this.age+this.f()
25             }
26         }
27         document.getElementById('info').innerHTML=new Student().info();
28     }
29 </script>
30 </head>
31 <body>
32     <p id="info"></p>
33 </body>
34 </html>

 

posted @ 2017-06-25 13:55  Tomas曼  Views(130)  Comments(0)  Edit  收藏  举报