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Error jinja2.exceptions.UndefinedError: 'form' is undefined
2022-08-09 06:27:00 【Koala Rice Bowl】

This is an error when I wrote the flask project
The reason for the error: because the two view functions reference the same template, the template uses jinja2, and one of the view functions does not use its syntax, so the above error is reported
Solution: Just write the templates referenced by the two views separately
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