http://blog.sina.com.cn/s/blog_775f158f010135uz.html
http://jingyan.baidu.com/article/d169e186602362436711d858.html
http://www.cnblogs.com/hellowzd/p/5885000.html
当Ucenter和应用通信失败
原文:http://www.cnblogs.com/as3lib/p/6542397.html