sudo pip3 install numpy Step 3:安装OpenCV sudo pip3 install opencv-contrib-python pypi.python.org不支持在RPi上安装opencv-python,但piwheels.org支持,不过目前只支持Python3,可访问https://www.piwheels.org/simple/opencv-contrib-python/查看 Step 4:Python调用OpenCV python3>>>import cv2>>>出现类似error...