JS继承
伪类:通过构造一个人伪类来继承某个构造器。通过定义它的constructor函数并替换它的prototype为某个构造器的实例。（类的继承）
//构造器var Mammal = function (name) { ???this.name = name; ???}Mammal.prototype.get_name = function () { ???return this.name; ?}Mammal.prototype.says = function () { ???return this.saying; ?}//继承var Cat = function (name) { ???this.name = name; ???this.saying = ‘meow‘; ?????}//替换Cat.prototype为一个新的Mammal实例Cat.prototype = new Mammal();原型：新对象继承旧对象，通过创建一个对象并将其prototype指向目标对象。
// Object.creat ???Object.creat =function (o) { ???????var F= function () {}; ???????F.prototype=o; ???????return new F(); ????????}//对象var myMammal ={ ???name : ‘ bss’, ???get_name : function (){ ???????return this.name;}, ???says : function () { ???????return this.saying || ‘ ‘;},} ??//继承对象var myCat = Object.creat(myMammal);JS继承
原文地址：https://www.cnblogs.com/JhonFlame/p/8045809.html