日常错误积累

RuntimeError Root Cause

You called this URL via POST, but the URL doesn't end in a slash and you have APPEND_SLASH set. Django can't redirect to the slash URL while maintaining POST data. Change your form to point to 192.168.1.59:8000/items/add_item/ (note the trailing slash), or set APPEND_SLASH=False in your Django settings.

解释:最后未加/