function Person(name,age){
this.name=name;
this.age=age;
}
Person.prototype.eat = function(){
console.log('吃火锅')
}
var p = new Person('小红',10);
Person.prototype = {//原型重构
constructor:Person,//重构的时候烧鹅一个constructor属性，要手动加一下
eat(){
console.log('吃水果')
}，
play(){
console.log('玩游戏')
}
}
var p1 = new Person('小明',20)
p1.eat();
p.eat();
