海康威视命令行工具，拍照生成jpeg文件
USAGE:
Simple:
hikvision capture -i 192.168.3.64
Full:
hikvision capture -i 192.168.3.64 -o c:\capture\capture.jpg -p haikang123 --port 8000 -u admin
-i Required. (Default: 192.168.3.64) The IP of carema.
--port (Default: 8000) The port of carema.
-o (Default: capture.jpg) The output jpeg file path.
-u (Default: admin) The user name for login carema.
-p (Default: haikang123) The password for login carema..
--help Display this help screen.
--version Display version information.