如何从django模型向select/option中输入值？

from django.db import models

class Product(models.Model):
    CATEGORY_CHOICES = (
        ('electronics', 'Electronics'),
        ('clothing', 'Clothing'),
        ('books', 'Books'),
    )
    category = models.CharField(max_length=20, choices=CATEGORY_CHOICES)
    # 其他字段...

from django import forms
from .models import Product

class ProductForm(forms.ModelForm):
    class Meta:
        model = Product
        fields = ['category', 'other_fields']  # 其他字段也可以包含在内

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.fields['category'].widget = forms.Select(attrs={'class': 'form-control'})

from django.shortcuts import render
from .forms import ProductForm

def create_product(request):
    if request.method == 'POST':
        form = ProductForm(request.POST)
        if form.is_valid():
            form.save()
            # 处理表单提交成功后的逻辑
    else:
        form = ProductForm()
    return render(request, 'create_product.html', {'form': form})

<!-- create_product.html -->
<form method="post">
  {% csrf_token %}
  {{ form.as_p }}
  <button type="submit">Create</button>
</form>