python中的，python form_Python中form的使用

文章目录

form的主要作用：

python中的、1.在html中生成表单框架，2.验证数据

https://www.cnblogs.com/zongfa/p/7709639.html

1.在model里创建一些数据类型

python表单。class Users(models.Model):

uname = models.CharField(max_length=30,unique=True,verbose_name="用户名")

upet = models.CharField(max_length=30,verbose_name="昵称")

python中的类，upawd = models.CharField(max_length=30,verbose_name="密码")

email = models.EmailField(verbose_name="电子邮件")

url = models.URLField(verbose_name="网址")

python main、2.在model.py同级目录下新建forms.py

有两种写法:

(1)定义表单模型

python opencv、from django import forms

class UserForm(forms.Form):

uname = forms.CharField(max_length=100 ,label='用户名')

email = forms.EmailField(label='电子邮件')

upet = forms.CharField(max_length=30,required=False,label='昵称')

upawd = forms.CharField(label='密码',widget=forms.Textarea)

url = forms.URLField(required=False ,label='网址')

(2)继承model

from django.forms import ModelForm

from myblog.users.models import Users

class UsersForm(ModelForm):

class Meta:

model = Users

fields = ('uname','upet', 'upawd','email','url')

3.在view视图中 ，做表单验证

def contact(request):

if request.method == 'POST':

form = ContactForm(request.POST)

if form.is_valid():

username=form.cleaned_data['uname']

usernick=form.cleaned_data['upet']

pawd1=form.cleaned_data['upawd']

email=form.cleaned_data['email']

weburl=form.cleaned_data['url']

Users(uname=username,upet=usernick,upawd=pawd1,

email=email,url=weburl).save()

return HttpResponseRedirect('/index/')

else:

4.在html页面，代码超简单，这点django做的不错

# 这是第一种写法，在

• 显示表单

# 这是第二种写法，在

显示表单

# 这是第三种写法，在

{% for field in form %} # 这是第四种写法，以循环形式显示表单

{{ field.label_tag }}:{{ field }}

{{ field.errors }}

{% endfor %}

标签：form,Python,表单,forms,models,使用,label,email

来源： https://blog.csdn.net/weixin_45414731/article/details/100735091