最近在win10 X64部署了Python27 win32 + Opencv3的环境，具体过程记录于其他博文。
进行图片的相关操作等均正常，但是在操作视频时，出现了问题。具体如下
代码：
Cap = cv2.VideoCapture('******')
#判断是否正常开启
print Cap.isOpened()
1、*********为*.avi文件，打印返回FALSE
2、*********为摄像头，打印返回FALSE
处理：
1、搜索良久，stackoverflow已有大神给出解决方法
http://stackoverflow.com/questions/11699298/opencv-2-4-videocapture-not-working-on-windows
Add C:\OpenCV\3rdparty\ffmpeg\ to the Windows PATH environment variable or copy opencv_ffmpeg.dll from that directory to C:\Python27\ or to a directory that is in the PATH.
拷贝dll文件或者将ffmpeg加入系统变量，试了下，not worked！
2、同一帖子下，有其他人回复如下：
first tried copying, then changing the Path environment of windows.. it didn't work until i changed the name to opencv_ffmpeg245.dll for my openCV version 2.4.5 and python 2.7. (notice **245.dll is from opencv version 2.4.5)
修改dll文件名，加上对应opencv版本号，试了下，not worked！
3、在往下看，又有大神回复解决方式：
I had the same issue with python 2.7 and opencv 2.4.10. I copied the opencv_ffmpeg2410_64.dll file from C:\Applications\opencv\build\x64\vc10\bin into the python path (mine is at C:\Users\mohammad\Anaconda) and it was solved!
其他opencv路径中已有带版本号的对应dll文件，拷贝之，worked！
比如我的该dll文件路径：C:\opencv\build\x86\vc12\bin\opencv_ffmpeg300.dll
