重写子窗体/继承窗体中父django窗体的clean()方法

from django import forms

class ParentForm(forms.Form):
    name = forms.CharField(max_length=100)
    age = forms.IntegerField()

    def clean(self):
        cleaned_data = super().clean()
        name = cleaned_data.get('name')
        age = cleaned_data.get('age')

        if name and age:
            if len(name) < 3:
                self.add_error('name', 'Name must be at least 3 characters long.')
            if age < 0:
                self.add_error('age', 'Age cannot be negative.')

        return cleaned_data

class ChildForm(ParentForm):
    email = forms.EmailField()

    def clean(self):
        cleaned_data = super().clean()
        email = cleaned_data.get('email')

        if email:
            if not email.endswith('@example.com'):
                self.add_error('email', 'Email must be from example.com domain.')

        return cleaned_data