window.onload是等待DOM和图片等加载完执行,$(function(){});是只要DOM渲染完就马上执行。
                
                    
                    2017-01-23
                
            各主流框架DOMReady的实现:
http://www.cnblogs.com/JulyZhang/archive/2011/02/12/1952484.html
                http://www.cnblogs.com/JulyZhang/archive/2011/02/12/1952484.html
                    
                    2017-01-19
                
             
             
        











