一、视频测试URL地址1、地址:http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4
2、地址:http://vjs.zencdn.net/v/oceans.mp4
3、地址:https://media.w3.org/2010/05/sintel/trailer.mp4
4、http://mirror.aarnet.edu.au/pub/TED-talks/911Mothers_2010W-480p.mp4