http://blog.csdn.net/funneies/article/details/7556334
http://zhidao.baidu.com/link?url=bfb-F5L7yJ1gGkbNVjtmJQ-mc5qWgLkzf6em6HQlr-PKu4uRVOuUFgzKLAEu_8fFAbDJk-1MCw1cC5GWMOxvokJoqWtNJvVpAo5wFMSTjji
js核心知识
原文：http://www.cnblogs.com/Lennyyi/p/4433662.html
