old_contents: from django import forms
  
  class LoginForm(forms.Form):
      password = forms.IntegerField(label="勇者密碼", widget=forms.PasswordInput(), help_text="應該會在識別證的前後左右 :)", max_value=999999, min_value=100000)
  
new_contents: from django import forms
  
  class LoginForm(forms.Form):
      password = forms.CharField(label="勇者密碼", widget=forms.PasswordInput(), help_text="應該會在識別證的前後左右 :)")
  
subject: use CharField