Something’s wrong with localization or the logging configuration, because it should be showing you the text, not unicode code points. If you print that string, it should make more sense:
In : print('\u4e0d\u5efa\u8bae\u4ee5root\u8eab\u4efd\u8fd0\u884c.\u4f7f\u7528–allow-root\u7ed5\u8fc7\u8fc7')
which I can’t read, but I know what the message should mean: Jupyter refuses to run as root by default unless you pass an explicit
--allow-root argument. You must either run as a non-root user or add the
--allow-root flag to confirm that running Jupyter as root is really what you intend to do.