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Git知识:
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FFMPeg知识:
http://blog.helloarron.com/2015/12/21/php/yii-dropzonejs-qiniu/
http://www.cnblogs.com/tinywan/p/6248714.html
http://www.cnblogs.com/liwenxia/archive/2012/07/18/2597652.html
http://www.cnblogs.com/arccosxy/p/3440210.html