Python安装cv2库出错及解决：Could not find a version that satisfies the requirement cv2
原来的安装命令是：https://blog.csdn.net/quantum7/article/details/81907553今天怎么不灵了？初步判断是原来使用3.5，现在改用了2.7（项目需要）。尝试运行命令：pip install cv2Collecting cv2 Could not find a version that satisfies the requ...
