擅长:python、mysql、java
<p>或许你可以试试这个:</p>
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<p>检查<a href="https://stackoverflow.com/questions/11710845/in-django-1-4-do-form-has-changed-and-form-changed-data-which-are-undocument">In Django 1.4, do Form.has_changed() and Form.changed_data, which are undocumented, work as expected?</a>以查看<code>form.has_changed()</code>将如何工作。在</p>