machinecat520
/
zj-Exercise


			
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    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script>

        /*
        创建一个对象
        */

        var obj = {
            name: "孙悟空",
            age: 28,
            gender: "男",
            sayName: function () {
                alert(this.name);
            }
        };

        /*
        使用工厂方法创建对象
            通过该方法可以大批量的创建对象
        */
        function createPerson(name, age, gender) {
            //创建一个新的对象
            var obj = new Object();
            //向对象中添加属性
            obj.name = name;
            obj.age = age;
            obj.gender = gender;
            obj.sayName = function () {
                console.log(this.name);
            };

            //将新的对象返回
            return obj;
        }
        var obj2 = createPerson("孙悟空", 28, "男");
        var obj3 = createPerson("二师兄", 38, "男");
        var obj4 = createPerson("沙师弟", 48, "男");
        console.log(obj2);
        console.log(obj3);
        console.log(obj4);

        // obj2.sayName();//输出结果为“孙悟空”
        // obj3.sayName();//输出结果为“二师兄”
        // obj4.sayName();//输出结果为“沙师弟”

        /*
        使用工厂方法创建的对象，使用的构造函数都是Object
            所以创建的对象都是Object这个类型，
            就导致我们无法区分出多种不同类型的对象
        */

        //创建一个狗的对象
        function createDog(name,gender){
            var obj = new Object();
            obj.name = name;
            obj.gender = gender;
            obj.sayDog = function(){
                console.log("都是汪汪队~~");
            };
            return obj;
        }
        var dog = createDog("旺财","公狗");
        console.log(dog);


    </script>
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