1.1建立物件

    <script text="text/javascript">
        //1.建立物件
        //this this 所在的函式屬於哪個物件，this就代表這個物件
        //1.1直接建立
        var dog = {
            name: 'San',
            age: 18,
            height: 
 
1.55,
            dogFriends: ['Bob','Lili'],
            eat:function (someThing) {
                console.log( this.name +'吃' + someThing);
            },
            run:function (someWhere) {
                console.log(this.name +'跑' + someWhere);
            }
        };//object
        console.log(
 
typeof dog);

        //1.2輸出這隻狗物件的屬性和行為
        console.log(dog.age,dog.dogFriends);
        dog.eat('肉');
        dog.run('健身房');
    </script>

2.通過建構函式批量產生物件

    <script type="text/javascript">
        //通過建構函式批量產生物件
        //普通函式->建構函式
        var Dog = function () {
            console.log(
 
'這是一個普通函式');
        };
        //普通呼叫
        Dog();

        // alloc init -> new
        var dog1 = new Dog();
        var dog2 = new Dog();
        console.log(dog1,dog2);

    </script>

3.驗證批量產生物件

     <script type="text/javascript">
        //建立建構函式 -> 抽象
        var Dog = function () {
            this.name = null;
            this.age = null;
            this.dogFriends = [];
            this.height = null;
            this.eat = function (someThing) {
                console.log(this.name + '吃' + someThing);
            }
            this.run = function (someWhere) {
                console.log(this.name + '跑' + someWhere);
            }
        }
        //批量產生物件
        var dog1 = new Dog();
        dog1.name = 'Peter';
        dog1.age = 15;
        dog1.dogFriends = ['A','B'];
        var dog2 = new Dog();
        dog2.name = 'Bob';
        dog2.age = 18;
        dog2.dogFriends = ['C','D'];
        console.log(dog1,dog2);

        //建立建構函式 -> 抽象
        var Dog1 = function (name,age,dogFriends,height) {
            this.name = name;
            this.age = age;
            this.dogFriends = dogFriends;
            this.height = height;
            this.eat = function (someThing) {
                console.log(this.name + '吃' + someThing);
            }
            this.run = function (someWhere) {
                console.log(this.name + '跑' + someWhere);
            }
        }
        var dog3 = new Dog1('Peter',15,['A','B'],1);
        console.log(dog3);
    </script>