function Parent() {
   this.isShow = true
   this.info = {
       name: "mjy",
       age: 18,
   };
}

Parent.prototype.getInfo = function() {
   console.log(this.info);
   console.log(this.isShow);
}

function Child() {};
Child.prototype = new Parent();

let Child1 = new Child();
Child1.info.gender = "男";
Child1.getInfo(); // {name: 'mjy', age: 18, gender: '男'} ture

let child2 = new Child();
child2.isShow = false
console.log(child2.info.gender) // 男
child2.getInfo(); // {name: 'mjy', age: 18, gender: '男'} false

function Parent(gender) {
  this.info = {
    name: "yhd",
    age: 19,
    gender: gender
  }
}

function Child(gender) {
    Parent.call(this, gender)
}

let child1 = new Child('男');
child1.info.nickname = 'xiaoma'
console.log(child1.info);

let child2 = new Child('女');
console.log(child2.info);

function Person(gender) {
  console.log('執(zhí)行次數(shù)');
  this.info = {
    name: "mjy",
    age: 19,
    gender: gender
  }
}

Person.prototype.getInfo = function () {   // 使用原型鏈繼承原型上的屬性和方法
  console.log(this.info.name, this.info.age)
}

function Child(gender) {
  Person.call(this, gender) // 使用構(gòu)造函數(shù)法傳遞參數(shù)
}

Child.prototype = new Person()

let child1 = new Child('男');
child1.info.nickname = 'xiaoma'
child1.getInfo()
console.log(child1.info);

let child2 = new Child('女');
console.log(child2.info);

function createObject(obj) {
  function Fun() {}
  Fun.prototype = obj
  return new Fun()
}

let person = {
  name: 'mjy',
  age: 18,
  hoby: ['唱', '跳'],
  showName() {
    console.log('my name is:', this.name)
  }
}

let child1 = createObject(person)
child1.name = 'xxxy'
child1.hoby.push('rap')
let child2 = createObject(person)

console.log(child1)
console.log(child2)
console.log(person.hoby) // ['唱', '跳', 'rap']

let person = {
  name: 'mjy',
  age: 19,
  hoby: ['唱', '跳'],
  showName() {
    console.log('my name is: ', this.name)
  }
}

let child1 = Object.create(person)
child1.name = 'xxt'
child1.hoby.push('rap')
let child2 = Object.create(person)

console.log(child1)
console.log(child2)
console.log(person.hoby) // ['唱', '跳', 'rap']

function objectCopy(obj) {
  function Fun() { };
  Fun.prototype = obj;
  return new Fun();
}

function createAnother(obj) {
  let clone = objectCopy(obj);
  clone.showName = function () {
    console.log('my name is：', this.name);
  };
  return clone;
}

let person = {
     name: "mjy",
     age: 18,
     hoby: ['唱', '跳']
}

let child1 = createAnother(person);
child1.hoby.push("rap");
console.log(child1.hoby); // ['唱', '跳', 'rap']
child1.showName(); // my name is： mjy

let child2 = createAnother(person);
console.log(child2.hoby); // ['唱', '跳', 'rap']

function objectCopy(obj) {
  function Fun() { };
  Fun.prototype = obj;
  return new Fun();
}

function inheritPrototype(child, parent) {
  let prototype = objectCopy(parent.prototype);
  prototype.constructor = child;
  Child.prototype = prototype;
}

function Parent(name) {
  this.name = name;
  this.hoby = ['唱', '跳']
}

Parent.prototype.showName = function () {
  console.log('my name is：', this.name);
}

function Child(name, age) {
  Parent.call(this, name);
  this.age = age;
}

inheritPrototype(Child, Parent);
Child.prototype.showAge = function () {
  console.log('my age is：', this.age);
}

let child1 = new Child("mjy", 18);
child1.showAge(); // 18
child1.showName(); // mjy
child1.hoby.push("rap");
console.log(child1.hoby); // ['唱', '跳', 'rap']

let child2 = new Child("yl", 18);
child2.showAge(); // 18
child2.showName(); // yl
console.log(child2.hoby); // ['唱', '跳']