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http://blog.csdn.net/zgyulongfei/article/details/7750462
http://blog.csdn.net/zgyulongfei/article/details/7750707
http://blog.csdn.net/zgyulongfei/article/details/7753163
http://blog.csdn.net/zgyulongfei/article/details/7753330
http://blog.csdn.net/column/details/media.html
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原文地址：http://my.oschina.net/zhangjie830621/blog/405317
