js里的prototype

<script type="text/javascript">
function people(name){
    this.name=name;
    this.introduce=function(){                       //对象方法         
        alert("my name is"+this.name);
    }
}

people.run=function(){                                   //类方法
    alert("i can run");
}

people.prototype.jump=function(){                  //原型方法
    alert("i can jump")
}

var p1=new people("vincent");
p1.introduce();                                             
people.run();                                                //c#中的static
p1.jump();
</script>

 

function common(){
    //.....
}
common.prototype=new Object();

 

Object对象是common的原型，Object对象的属性和方法复制到了common上