下面的内容段是关于python+django实现的简单的表单验证的内容，应该能对大伙也有用途。

<html><head> <title>Form validation example</title> <link rel="stylesheet" type="text/css" href="{{ STATIC_URL }}css/bootstrap.css"></head><body> <div class="col-sm-8"> <h3>Form validation example</h3> {% if form.errors %} <div class="text-danger">Please correct the error{{ form.errors|pluralize }} below.</div> {% endif %} <p> <div class="form-horizontal"> <form action="" method="post" role="form">{% csrf_token %} <div class="form-group row {% if form.subject.errors %}has-error{% endif %}"> <label for="id_subject" class="col-sm-3 control-label">Email subject:</label> <div class="col-lg-5"> {{ form.subject }} {% if form.subject.errors %} <span class="help-block"> {% for error in form.subject.errors %}{{ error }}{% endfor %} </span> {% endif %} </div> </div> <div class="form-group row {% if form.email.errors %}has-error{% endif %}"> <label for="id_sender" class="col-sm-3 control-label">Email address:</label> <div class="col-lg-5"> {{ form.email }} {% if form.email.errors %} <span class="help-block"> {% for error in form.email.errors %}{{ error }}{% endfor %} </span> {% endif %} </div> </div> <div class="form-group row {% if form.message.errors %}has-error{% endif %}"> <label for="id_message" class="col-sm-3 control-label">Message:</label> <div class="col-lg-5"> {{ form.message }} {% if form.message.errors %} <span class="help-block"> {% for error in form.message.errors %}{{ error }}{% endfor %} </span> {% endif %} </div> </div> <div class="form-group row"> <div class="col-sm-5 col-sm-offset-3"> <input type="submit" value="Validate form" class="btn btn-primary" /> </div> </div> </form> </div> </div></body></html>forms.pyfrom django import formsclass ContactForm(forms.Form): """ define a contact form class """ # this will be rendered like # <input class="form-control" id="id_subject" name="subject" size="48" type="text"> # valid if not empty subject = forms.CharField(widget=forms.TextInput(attrs={'size':'48', 'class':'form-control'})) # A CharField that checks that the value is a valid email address. email = forms.EmailField(widget=forms.TextInput(attrs={'size':'48', 'class':'form-control'})) message = forms.CharField(widget=forms.Textarea(attrs={'cols':50, 'rows': 5 , 'class':'form-control'}))views.pyfrom django.shortcuts import renderfrom .forms import ContactFormdef contact(request): if request.method == 'POST': # get data from POST request to contactform form = ContactForm(request.POST) else: form = ContactForm() data = { 'form': form, } return render(request, 'contact_form.html', data)