Jinja 模板代碼<form method="POST">  {{ form.name.label }} {{ form.name() }}  {{ form.submit() }}</form>表單類class NameForm(FlaskForm):  name = StringField('What is your name?', validators=[Required()])  submit = SubmitField('Submit')pdb> request.formImmutableMultiDict([('name', 'rohit'), ('submit', 'Submit')])form.validate_on_submit() 返回 False 而不是 True。