http://www.360doc.com/content/12/1126/09/834950_250263997.shtml

http://www.cnblogs.com/ylqmf/archive/2011/10/27/2226958.html

http://blog.csdn.net/yongsheng0550/article/details/6682162

本文转自 Tenderrain 51CTO博客，原文链接:http://blog.51cto.com/tenderrain/1611576