一,查看本地centos的版本: [root@localhost lib]# cat /etc/redhat-release CentOS Linux release 8.1.1911 (Core) 说明:刘宏缔的架构森林是一个专注架构的博客,地址:https://www.cnblogs.com/architectforest 对应的源码可以访问这里获取: https://github.com/liuhongdi/ 说明:作者:刘宏缔 邮箱: 371125307@qq.com 二,报错一: @E…