12.20 原型-构造器

 

 

工厂函数

 function usre(name,age,gender){
  var person = {};
  person.name = name;
  person.age = age;
  person.gender = gender;
  return person;
}

var whh = user('王花花',20,'male')
console.log('whh:'，whh);

function User(name,age,gender){
  this.name = name;
  this.age = age;
  this.gender = gender;
}

var whh = new User('王花花',18,'male')

function Dog{
  this.age = 5;
  this.gender = 'male';
  this.叫 = function(){
    console.log('Muhahaha!')
 }
}


var dog = new Dog();

dog.叫();