widget=widgets.TextInput(attrs={'class': 'form-control'}) # 给此标签限制type类型，并添加属性的简便写法

from django.forms import widgets

class UserForm(forms.Form):
    user=forms.CharField(min_length=5,label="用户名")
    pwd=forms.CharField(min_length=5,widget=widgets.PasswordInput(),label="密码")
    r_pwd=forms.CharField(min_length=5,widget=widgets.PasswordInput(),label="确认密码")
    email=forms.EmailField(min_length=5,label="邮箱")

    # def __init__(self, *args, **kwargs):
    # super().__init__(*args, **kwargs)
    # for filed in self.fields.values():
    # filed.widget.attrs.update({'class': 'form-control'})

def clean_user(self): val=self.cleaned_data.get("user") user=UserInfo.objects.filter(username=val).first() if user: raise ValidationError("用户已存在！") else: return val def clean_pwd(self): val=self.cleaned_data.get("pwd") if val.isdigit(): raise ValidationError("密码不能是纯数字！") else: return val def clean_email(self): val=self.cleaned_data.get("email") if re.search("\[e-mail]$",val): return val else: raise ValidationError("邮箱必须是163邮箱！") def clean(self): pwd=self.cleaned_data.get("pwd") r_pwd=self.cleaned_data.get("r_pwd") if pwd and r_pwd and r_pwd!=pwd: self.add_error("r_pwd", ValidationError("两次密码不一致！")) else: return self.cleaned_data

#### widget=widgets.TextInput(attrs={'class': 'form-control'})