05jQuery源码解析

location = window.location,document = window.document,docElem = document.documentElement,存成变量有利于压缩操作

_jQuery = window.jQuery_$      = window.$防冲突的设计:其他的库中可能也有$

面向对象function Obj(){}Obj.prototype.init = function(){};Obj.prototype.css=function(){};var o1 = new Obj();Obj.init();Obj.css();