面向對象之工廠模式和構造函數模式

工廠模式：用函數來封裝，以特定介面來創建對象的細節。

創建的對象是Object類型

function person(name, age , job){
    var o  =new Object() ;
    o.name = name;
    o.age = age ;
    o.job = job ;
    o.sayName = function(){
        alert(this.name);
    };
    return o ;



var person1 = new person("cancan",21,"student");
var person2 = new person("xiaoma",45,"teacher");

   console.log(person1 instanceof person); // false
   console.log(person1 instanceof Object);//true
   console.log(person instanceof person); //true

構造函數模式：構造函數可以創建特定類型的對象，自定義對象的屬性和方法

function person(name,age,job){
    this.name = name ;
    this.age = age ;
    this.job = job ;
    this.sayName = function(){
        alert(this.name);
    };

}

var person1 = new person("cancan",21,"student");
var person2 =new person("xiaoma",45,"teacher");

  console.log(person1 instanceof person); // true
  console.log(person instanceof Object); // true