版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/weixin_41556165/article/details/84638335
class child{}
class parent{
constructor(){
}
sleep(){console.log("i'm sleeping")}
}
parent.prototype.sleep = "sleeping!";
//原生写法：
child.prototype.__proto__ = parent.prototype;
child.prototype = Object.create(parent.prototype);
Object.setPrototype(child.prototype,parent.prototype);
//实现继承(只继承公有)先继承再new
let child = new child();
let parent = new parent();
//使用util模块：
let util = require('util');
util.inherits(child,parent);