一种手势识别的方法， 可以通过摄像头采集数据，然后和保存的模版对比，达到识别的效果，但摄像头实时采集，因电脑而异，需要稍微改动。-A gesture recognition method, data can be collected through the camera, and then match the template , to identify the effect, but the camera real-time acquisition, due to computer-specific, need a little change