JavaScript构造函数与实例对象的关系解析

function Person(name,age,sex) {
    this.name=name;
    this.age=age;
    this.sex=sex;
    this.eat=function () {
        console.log("吃");
    };
}

var per=new Person("小明",38,"女");

console.log(per.constructor==Person);//true

console.log(per.constructor==Person);
console.log(per instanceof Person);//推荐