OOP之属性继承和方法继承

function CreatePerson(name,sex){
    this.name=name;
    this.sex=sex;
    this.showName();
    this.showSex();
}
CreatePerson.prototype={
    constructor:CreatePerson,//修正constructor
    showName:function(){
        alert(this.name);
    },
    showSex:function(){
        alert(this.sex);
    }
}
new CreatePerson('小明','男');

function CreateStar(name,sex,job){
    CreatePerson.call(this,name,sex);//继承CreatePerson属性
    this.job=job;
    this.showJob();
}

copyObj(CreateStar.prototype,CreatePerson.prototype);//拷贝继承CreatePerson.prototype的所有方法

CreateStar.prototype.showJob=function(){
        alert(this.job);
    
}
new CreateStar('黄晓明','男','演员');

//拷贝父类的所有方法到子类
function copyObj(newObj,oldObj){
    for(attr in oldObj){
        newObj[attr]=oldObj[attr];
    }
}