面向对象-继承

 1 <script>
 2         function person(name,sex) {
 3             this.name=name;
 4             this.sex=sex;
 5         }
 6 
 7         person.prototype.showName=function () {
 8             alert(‘我的名字：‘+this.name);
 9         }
10         person.prototype.showSex=function () {
11             alert(‘我的sex：‘+this.sex);
12         }
13         //---------------------------------------------------
14         function worker(name,sex,job) {
15             person.call(this,name,sex);
16             this.job=job;
17         }
18         worker.prototype=person.prototype;
19 
20         worker.prototype.showJob=function () {
21             alert(‘我的job：‘+this.job);
22         }
23 
24         var p1=new person(‘blue‘,‘男‘);
25         p1.showName();
26         p1.showSex();
27         
28         var p2=new worker(‘blue‘,‘男‘,‘程序员‘);
29         p2.showJob();
30     </script>