<script>
        function Person(name,age) {
            this.name = name;
            this.age = age;
        }
        //通过原型来添加方法,解决数据共享，节省内存空间
        Person.prototype.eat = function () {
            console.log('我要吃大骨头炖榴莲');
        };
        var p1 = new Person('小明',20);
        var p2 = new Person('小红',30);
        console.log(p1==p2);//false
        console.log(p1.eat==p2.eat);//true

        console.dir(p1);
        console.dir(p2);
        </script>

image.png