python安装cv2出现如下错误：Could not find a version that satisfies the requirement cv2 (from versions: )

最先开始是报出这样的错误，然后我就去安装， python安装cv2出现如下错误：Could not find a version that satisfies the requirement cv2 (from versions: ) 点击“install package cv2”
安装未成功，然后百度查找相关资料，说是压根没有cv2的包，实际上需要安装的是一个叫opencv-python的包，
然后我就去安装opencv-python包，打开终端：键盘上的窗口键+R，直接在目录后面输入：pip install opencv-python,等待安装完成即可。
python安装cv2出现如下错误：Could not find a version that satisfies the requirement cv2 (from versions: )
然后回到pycharm中，找到file-setting-Project Interpreter,右上角有个+，点击进去，
找到opencv-python，点击“install Package”，提示安装成功回到代码界面，将cv2安装就可以了。
python安装cv2出现如下错误：Could not find a version that satisfies the requirement cv2 (from versions: ) 第一次写，希望能帮到小伙伴！