1、安装docker-compose前需要先安装docker
2、下载地址：https://github.com/docker/compose/releases/tag/v2.23.0
3、下载对应的版本，我下载的docker-compose-linux-x86_64
4、放到对应的目录，我看网上有几个都是放到/usr/local/bin中，虽然不明白为什么要放到这里，反正就随大流了
5、给权限 chmod +x /usr/local/bin/docker-compose
6、然后就可以用docker-compose -v查看版本了
7、不用像普通安装一样配置环境变量，不明觉厉
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