function Person(){"use strict";Person.prototype={ name:"Nooo", age:29, job:"software enginner", sayName:function () { alert("哈哈哈"); }}}var obj=new Person();obj.name undefined但是放在function的外面卻可以訪問(wèn)prototype屬性function Person(){}Person.prototype={construct:Person,name:"Nooo",age:29,job:"software enginner",sayName:function () { alert("哈哈哈");}}請(qǐng)問(wèn)這兩種方式的差別是什么？第一種方式哪里有問(wèn)題
在構(gòu)造函數(shù)內(nèi)部重寫(xiě)整個(gè)原型對(duì)象，然而實(shí)例化后卻不能訪問(wèn)
繁華開(kāi)滿天機(jī)
2018-12-13 18:18:23
