yum install epel-release

https://centos.pkgs.org/8/epel-x86_64/
在上述链接中直接找到相应的安装包，并下载，再安装

https://blog.csdn.net/qq_36955294/article/details/80112394

https://blog.csdn.net/zchang81/article/details/76251001
https://blog.csdn.net/qq_42633819/article/details/81191308

https://blog.csdn.net/vite_s/article/details/54583243

https://www.cnblogs.com/zhuifeng-mayi/p/9171383.html

https://files.pythonhosted.org/packages/38/a9/cd39fd25df434b5d9451dc266c12b72f68282a2b9bd5d7b4aa2d57d6c20e/opencv-python-4.4.0.44.tar.gz

https://blog.csdn.net/tianlesoftware/article/details/5579104

Ubuntu 20.04 从源码编译并配置OpenCV 4.4.0 以及python 3.8支持

https://www.jianshu.com/p/26dd452a362e

https://blog.csdn.net/weixin_41754736/article/details/102762612

要配置网桥，必须安装bridge-utils

物理接口ens3

将物理接口ens3划入到vlan20，实际就是创建ens3.20子接口

auto ens3.20
iface ens3.20 inet manul
vlan-raw-device ens3

创建网桥br0

auto br0
iface br0 inet static

    #关闭stp
    bridge_stp off
    #网桥绑定ens3.20接口
    bridge_ports ens3.20
address 192.168.10.4
    netmask 255.255.255.0

请输入链接描述