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因为在部署过程中会涉及用户邮件发送，如果有的同事不愿意收到太多邮件，则可以自己定义为不存在的邮箱。

我们在注册的时候，也不会写用户邮箱地址，那么他们也可以在这里自己更改。

changeemail.html模板

{% extends "index.html" %}
{% load staticfiles %}

{% block title %} 修改邮箱 {% endblock %}


{% block content %}
   <div class="tm-middle">
        <div class="uk-container uk-container-center">
            <h3 class="tm-article-subtitle uk-margin-top">
                修改邮箱
            </h3>
           <hr class="uk-grid-divider">

            <div class="uk-panel uk-panel-box uk-container-center uk-width-1-3">
                <h3 class="uk-panel-title"><i class="uk-icon-user"></i>修改邮箱</h3>

                    <div class="uk-grid">
                    <div >
                        当前邮箱：{{ user.email }}
                         {% if changeemail_success %}
                            <div class="uk-alert">邮箱更新成功！</div>
                        {% endif%}
                    <form class="uk-form uk-form-horizontal uk-margin-top" action="" method="post">
                        {% csrf_token %}

                        <div class="uk-form-row">
                            <div class="uk-form-label">
                                更改{{ form.email.label_tag }}
                            </div>
                            <div class="uk-form-control">
                                {{ form.email }}
                            </div>
                        </div>
                        <div class="uk-form-row">
                            <input type="submit" value="确认修改" class="uk-button uk-button-primary">
                        </div>
                    </form>
                    </div>
                </div>
            </div>

        </div>
   </div>
{% endblock %}

forms.py表单文件：

class UserEmailForm(forms.ModelForm):
    email = forms.EmailField(required=True)

    class Meta:
        model = User
        fields = ('email',)

views.py文件：

def changeemail(request):
    if request.POST:
        user_form = UserEmailForm(request.POST, instance=request.user)
        if user_form.is_valid():
            user_form.save()
            return render_to_response('changeemail.html', RequestContext(request, {'form': user_form, 'changeemail_success': True}))
    else:
        user_form = UserEmailForm()
        return render_to_response('changeemail.html', RequestContext(request, {'form': user_form, }))

最后，，就简单的弄出来了。