JavaScript中定义对象原型的两种使用方法

function Person(){this.username = new Array();this.password = "123";}Person.prototype.getInfo = function(){alert(this.username + ", " + this.password);}var p = new Person();var p2 = new Person();p.username.push("zhangsan");p2.username.push("lisi");p.getInfo();p2.getInfo();

function Person(){ this.username = new Array(); this.password = "123";}Person.prototype={ getInfo:function(){ alert(this.username + ", " + this.password); }}var p = new Person();var p2 = new Person();p.username.push("zhangsan");p2.username.push("lisi");p.getInfo();p2.getInfo();

Person.prototype={a方法:function(){ do somethings... },b方法:function(){ do somethings... }}