对象冒充--实例

 

function BaseA(id,name)
    {
        this.id = id;
        this.name = name;
        this.ShowName = function()
        {
            document.write(this.name);
        }
        this.ShowId = function()
        {
            document.write(this.id);
        }
    }

    var a1 = new BaseA(1,"A");
    a1.ShowName();

    function BaseB(id,name)
    {
        this.newMethod = BaseA;
        this.newMethod(id);
        delete this.newMethod;

        this.id = id;
        this.name = name;
        this.Show = function()
        {
            document.write(this.id + "--" +this.name);
        }
    }
    
    var b1 = new BaseB(2,"b");
    b1.ShowName();
    b1.ShowId();
    b1.Show();