js类继承和原型继承

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/**
 * Created by hp5 on 1/11/2015.
 */
function run (){
    console.log(Dog);
    var person=new Person("pangsen",27);
    var develop=new Develop("pangsen1",21)
    console.log(person,develop)
    Person.prototype.test=function(){
        console.log(this.name);
    }
    console.log(person,develop)
}
function Person(name,id){
    this.name=name;
    this.id=id;
    this.greet=function(){
        console.log("Hello guys,This is "+name);
    }
}
function Develop(name,id){
    Person.call(this,name,id);
}
function extend(parent,child){
    var F=function(){};
    F.prototype=parent.prototype;
    child.prototype= F.prototype;
    child.prototype.constructor=child;
    if(parent.prototype.constructor==Object.prototype.constructor){
        parent.prototype.constructor=child;
    }
}
extend(Person,Develop);
var MoveType={
    walk:1,
    jump:2,
    wriggle:3
}
var Direction={
    up:1,
    down:2,
    left:3,
    right:4
}
var Animal={
    name:"default name",
    howToMove:MoveType.walk,
    currentDirection:Direction.up,
    move:function(){
        console.log(howToMove,currentDirection)
    }
}
function clone(obj){
    var F=function(){};
    F.prototype=obj;
    return new F;
}
var Dog=clone(Animal);

转载于:https://my.oschina.net/u/254394/blog/366184