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 }