es5和es6 继承的不同

function Person(){};

function Student(){};

Student.prototype = new Person()

var stu = new Student()

console.log(stu.__proto__) // Person{}

-------------------------------

class Person{}

class Student extends Person{}

var stu = new Student()

console.log(stu.__proto__) //Student{}

es5和es6 的集成好像有点不一样