docker images 用于查看本地已下载的镜像
[root@localhost ~]$ docker images REPOSITORY TAG IMAGE ID CREATED SIZE centos latest 1e1148e4cc2c 2 weeks ago 202MB ubuntu latest 93fd78260bd1 5 weeks ago 86.2MB
REPOSITORY # 镜像仓库 TAG # 镜像标签 IMAGE ID # 镜像ID CREATED # 镜像创建时间 SIZE # 镜像大小
原文：https://www.cnblogs.com/pzk7788/p/10180507.html