擅长:python、mysql、java
<p>不确定您要做什么,但是您的表单应该声明一个模型以获得一个查询集来使用。你知道吗</p>
<pre><code>class UserOrderForm(forms.ModelForm):
class Meta:
model = Cars
fields = ['manufacturer', 'model_number', 'etc']
widgets = {'manufacturer': forms.Select}
</code></pre>
<p>您的用户将提供输入,例如从select字段中选择BMW。你知道吗</p>
<p>签出:<a href="https://docs.djangoproject.com/en/2.1/topics/forms/modelforms/" rel="nofollow noreferrer">https://docs.djangoproject.com/en/2.1/topics/forms/modelforms/</a></p>