//父类

function Aaa(name,sex,inter){

    this.name = name;

    this.sex = sex;

    this.inter = [1,2,3];

}

Aaa.prototype.showName = function(name){

    return name;

}

//子类

function Bbb(){

    Aaa.call(this);//继承父类属性

}

/*

    继承父类中的function方法：

    F过渡方法 避免prototype重复

    Bbb.prototype.constructor = Bbb; 将构造方法重新指向 Bbb

*/

//function F(){}

var F = function(){};

F.prototype = Aaa.prototype;

Bbb.prototype = new F();

Bbb.prototype.constructor = Bbb;

//实例化父类

var b1 = new Aaa();

b1.inter.push(4);

console.log("实例化父类后给inter增加元素结果为:"+b1.inter.toString());

//实例化子类

var b2 = new Bbb();

b2.inter.push(5);

console.log("实例化子类后给inter增加元素结果为:"+b2.inter.toString());