带有复选框的Django表单始终为False

from django import forms

class MyForm(forms.Form):
    my_checkbox = forms.BooleanField(required=False)

def my_view(request):
    if request.method == 'POST':
        form = MyForm(request.POST)
        if form.is_valid():
            my_checkbox_value = form.cleaned_data['my_checkbox']
            # 处理复选框的值
            if my_checkbox_value:
                # 复选框被勾选
            else:
                # 复选框未被勾选
    else:
        form = MyForm()
    
    return render(request, 'my_template.html', {'form': form})