js的工厂模式

 // 2.工厂模式
        function Person() {
            this.age = 20,
            this.name = 'xiaoer',
            this.say = function () {
                console.log('haha');
            }    
        }

        var p = new Person();
        console.log(p.age);
        p.say();
        Person.prototype.height = 200;
        console.log(p.height);

        // 2.2工厂模式2
        function createPerson(age,name) {
            
            var p = {
                age:age,
                name:name,
                say:function () {
                    console.log('工厂模式2');
                }
            }
            return p;
        }
        var p = createPerson(20,'xiaoer');
        p.say();