个人学习,简单记录
//1.4.4版本 Sizzle.isXML = function(elem){ var documentElement = (elem ? elem.ownerDocument || elem :0 ).documentElement; return documentElement ? documentElement.nodeName !== "HTML" : false; }
其他学习资料:
http://blog.youkuaiyun.com/cheng5128/article/details/5380114