JavaScript创建对象的四种方式

一.字面量的方式

var per1 = {
  name:"卡卡西",
  age:20,
  sex:"男",
  eat:function () {
      console.log("吃........");
    },
   readBook:function () {
          console.log("读书....");
     }
   };

二.调用系统的构造函数

 var per1 = new Object();
    per1.name = "昆明";
    per1.age = 19;
    per1.sex = "男";
    per1.eat = function () {
        console.log("cccc");
    };
    per1.readBook = function () {
        console.log("读书.....");
    };

三.自定义构造函数

function Person(name,age,sex) {
        this.name = name;
        this.age = age;
        this.sex = sex;
        this.eat = function () {
            console.log("ccccc");
        };
        this.readBook = function () {
            console.log("读书");
        };
    }

四.工厂模式创建对象

  function createObject(name,age) {
        var obj = new Object();
        obj.name = name;
        obj.age = age;
        obj.sayHi = function () {
            console.log("say_Hi");
        };
        return obj;
    }