包含非必填字段的Django MultiValueField

from django import forms

class MyMultiValueField(forms.MultiValueField):
    def __init__(self, *args, **kwargs):
        fields = (
            forms.CharField(required=False),
            forms.CharField(required=False),
            forms.CharField(required=False),
        )
        super().__init__(fields, *args, **kwargs)

    def compress(self, data_list):
        # 将输入的值合并为一个列表
        return [value for value in data_list if value]

class MyForm(forms.Form):
    my_field = MyMultiValueField()

# 在视图中使用表单
def my_view(request):
    if request.method == 'POST':
        form = MyForm(request.POST)
        if form.is_valid():
            # 处理有效的表单数据
            data = form.cleaned_data['my_field']
            # ...
    else:
        form = MyForm()
    
    return render(request, 'my_template.html', {'form': form})