pip3 install cv2 Collecting cv2 ERROR: Could not find a version that satisfies the requirement cv2 (from versions: none) ERROR: No matching distribution found for cv2没有找到cv2应该安装opencv-pythonpip3 install opencv-python Collecting opencv-python Downloading https://files.pythonhosted.org/packages/dc/54/a6b7727c67d4e14194549a9e1a1acd7902ebae2f4a688d84b658ae40b5fb/ope ncv_python-4.1.0.25-cp36-cp36m-win_amd64.whl (37.3MB) |████████████████████████████████| 37.4MB 192kB/s Requirement already satisfied: numpy1.11.3 in d:\software\python3\lib\site-packages (from opencv-python) (1.16.3) Installing collected packages: opencv-python Successfully installed opencv-python-4.1.0.25