1.更新pip
python -m pip install --upgrade pip
更新时若提示,“Could not install packages due to an EnvironmentError: [WinError 5] 拒绝访问”,则输入以下代码
python -m pip install --upgrade pip -i https://pypi.douban.com/simple --user
2.win+R输入cmd进入程序命令行,输入pip list查看,查看电脑中python环境已安装的库文件,是否有numpy库和matplotlib库,若没有这两个库,还需要安装这两个库;
pip install numpy
pip install matplotlib
3.在cmd中安装opencv库
pip install opencv-python
4.完毕