在django中接收到来自views.py的数据后，为forms.py创建一个选择列表

from django import forms

class MyForm(forms.Form):
    my_choices = (
        ('option1', 'Option 1'),
        ('option2', 'Option 2'),
        ('option3', 'Option 3'),
    )
    my_field = forms.ChoiceField(choices=my_choices)

from django.shortcuts import render
from .forms import MyForm

def my_view(request):
    if request.method == 'POST':
        form = MyForm(request.POST)
        if form.is_valid():
            # 处理表单数据
            selected_option = form.cleaned_data['my_field']
            # 其他操作...
    else:
        form = MyForm()
    
    return render(request, 'my_template.html', {'form': form})

<form method="post">
  {% csrf_token %}
  {{ form.as_p }}
  <button type="submit">提交</button>
</form>