class Person{
            constructor(name){ 
                this.name = name;
            }
            greet(){
                 
                console.log('Hello,my name is ' + this.name + 'and I am ' + this.age);
            }
        }


class Max extends Person { 
            constructor(age){
                super('Max');
                this.age = age;
            }

            greet(){
                console.log('haha');
            }
            greetTwice(){
                super.greet();
                this.greet();
            }
        } 

let max = new Max(27);
        max.greetTwice();
    
        console.log(max.__proto__ == Max.prototype); //true;
        console.log(max.__proto__ == Person.prototype); //false;

为啥Max是继承了Person,但是他们的prototype却不一样？