1 function CreatePerson(name,sex){
2 this.name=name;
3 this.sex=sex;
4 this.showName();
5 this.showSex();
6 }
7 CreatePerson.prototype={
8 constructor:CreatePerson,//修正constructor
9 showName:function(){
10 alert(this.name);
11 },
12 showSex:function(){
13 alert(this.sex);
14 }
15 }
16 new CreatePerson('小明','男');
17
18 function CreateStar(name,sex,job){
19 CreatePerson.call(this,name,sex);//继承CreatePerson属性
20 this.job=job;
21 this.showJob();
22 }
23
24 copyObj(CreateStar.prototype,CreatePerson.prototype);//拷贝继承CreatePerson.prototype的所有方法
25
26 CreateStar.prototype.showJob=function(){
27 alert(this.job);
28
29 }
30 new CreateStar('黄晓明','男','演员');
31
32 //拷贝父类的所有方法到子类
33 function copyObj(newObj,oldObj){
34 for(attr in oldObj){
35 newObj[attr]=oldObj[attr];
36 }
37 }
