// 寄生组合式继承

// 其基本思路是通过借用构造函数来继承属性，通过原型链的混成形式来继承方法，就是为了不必为了子类型的原型去调用父类型的构造函数

function inheritPrototype(superPerson,person)

{

  var prototype=Object.create(person.prototype);

  prototype.construtor = superPerson;

  superPerson.prototype = prototype;

}

function Person(name)

{

  this.name = name;

  this.frieds =  ["Jack", "John", "Kim"];

}

Person.prototype.getName = function(){

  console.log(this.name);

};

function SuperPerson(name,sex){

  Person.call(this,name);

  this.sex = sex;

}

inheritPrototype(SuperPerson,Person);

SuperPerson.prototype.getSex = function(){

  console.log(this.sex);

};

var Tom=new SuperPerson("Tom","man");

Tom.getName();//Tom