ES6构造函数class 和 ES5构造函数语法

 <script>
        // ES5和ES6语法的对比

        // 1,ES5语法
        function Fun1(name,age){
            this.name  = name;
            this.age = age;
        }
        Fun1.prototype.f1 = function(){
            console.log(this.name , this.age);
        }

        

        // 2,ES6语法  class
        class Fun2{
            constructor(name,age){
                this.name = name;
                this.age = age;
            }

            f2(){
                console.log(this.name , this.age);
            }
        }

        const obj1 = new Fun1('张三',18);
        const obj2 = new Fun2('李四',20);

        console.log(obj1);
        console.log(obj2);
    </script>