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You need to worry too much, you don’t need to write them one by one manually, it is already there by default, just use it, for example: {{user.username}}
But there is no custom field information such as avatar.
Or you can customize a context_processors.py to return the information you want, and then import it in settings.py. There is no need to return in every function

如果你是使用的auth.login()登錄的話，你可以在任何一個(gè)模板里直接使用user對(duì)象
如{{user.username}}

It should be {{request.user.username}}.
And django supports setting global variables

After the user logs in, the user information will generally be stored in request.user. There is no need to pass the user variable into the context. The premise is that django.template.context_processors.request is referenced in settings

Additional point: If a fixed part of content appears on many pages, you can use template inheritance to extract the same parts, and modify the content of the template through extends and include.