ubuntu下多版本opencv安装及切换

https://blog.csdn.net/qq_34952119/article/details/71501652

https://blog.csdn.net/learning_tortosie/article/details/80594399

https://opencv.org/releases.html

https://docs.opencv.org/master/d7/d9f/tutorial_linux_install.html

注意多版本opencv共存即为,安装在不同的位置,首先需要查看原先版本的安装位置.