opencv-python3版使用方法:解压至文件夹运行setup_vars_opencv4.cmd自动将当前文件夹添加至Path路径中即可编译环境:windows10x64cmake3.16.0-rc1VisualStudio201514.0python3.7.4opencv-contrib4.1.2opencv4.1.1OPENCV_ENABLE_NONFREE已设为Truexfeatures2d中含surf,sift等函数含python3接口