问题：docker pull 用户登陆tricky，Error response from daemon: unauthorized: incorrect username or password

问题描述：

PS C:\WINDOWS\system32> docker pull rabbitmq
Using default tag: latest

Please login prior to pull:
Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://h
ub.docker.com to create one.
Username (username@email.com):
Password:
Error response from daemon: Get https://registry-1.docker.io/v2/library/rabbitmq/manifests/latest: unauthorized: incorrect username or password

原因分析：

授权失败，不正确的用户名或者密码。

解决方案：

Username使用用户名而非邮箱地址。