javascript - jwplayer不能播放七牛外鏈?

七牛外鏈:http://7xrjj0.com1.z0.glb.clouddn.com/%40%2Fvideo/2047/f72a4e11-d0c1-42e9-bbff-aab2ee9958c1.

<code>    <script type = "text/javascript" >

       jwplayer ( "container" ). setup ({

                          flashplayer : "/jwplayer/player.swf" ,

                          file : "./band.mp4" ,

                          height : 270 ,

                          width : 480

      });

   </script></code>

上面file :變更為外鏈位址，視訊不能播放,錯誤訊息如下：Error loading player:

No playable sources found

請教各位大牛，什麼原因？

回覆內容：

七牛外鏈:

http://7xrjj0.com1.z0.glb.clouddn.com/%40%2Fvideo/2047/f72a4e11-d0c1-42e9-bbff-aab2ee9958c1

.

<code>    <script type = "text/javascript" >

       jwplayer ( "container" ). setup ({

                          flashplayer : "/jwplayer/player.swf" ,

                          file : "./band.mp4" ,

                          height : 270 ,

                          width : 480

      });

   </script></code>

上面file :變更為外鏈位址，視訊不能播放,錯誤訊息如下：Error loading player:
No playable sources found

請教各位大牛，什麼原因？