怎么连接已经打开的docker容器

连接docker的时候会出现：

docker: Error response from daemon: Conflict. The container name "/nachos" is already in use by container "39a3325afcf244d275555cf483786aa2d96f84dde69b29affd55cdafa65a7ed1". You have to remove (or rename) that container to be able to reuse that name.

解决方法是：

sudo docker container ls -all

获得ID，然后

sudo docker start 39a3325afcf2

sudo docker attach 39a3325afcf2