如何在同时发送邮件的django中创建注册表

from django.db import models

class Registration(models.Model):
    username = models.CharField(max_length=100)
    email = models.EmailField()
    password = models.CharField(max_length=100)

from django.contrib.auth.models import User
from django.core.mail import EmailMessage
from django.shortcuts import render, redirect

from .forms import RegistrationForm

def register(request):
    if request.method == 'POST':
        form = RegistrationForm(request.POST)
        if form.is_valid():
            # 创建用户
            user = User.objects.create_user(
                username=form.cleaned_data['username'],
                password=form.cleaned_data['password']
            )
            user.email = form.cleaned_data['email']
            user.save()

            # 发送邮件
            email_subject = '欢迎注册'
            email_body = '感谢您注册！'
            email = EmailMessage(email_subject, email_body, to=[user.email])
            email.send()

            return redirect('success')
    else:
        form = RegistrationForm()

    return render(request, 'register.html', {'form': form})

def success(request):
    return render(request, 'success.html')

from django import forms

class RegistrationForm(forms.Form):
    username = forms.CharField(max_length=100)
    email = forms.EmailField()
    password = forms.CharField(max_length=100, widget=forms.PasswordInput)

from django.urls import path

from myapp.views import register, success

urlpatterns = [
    path('register/', register, name='register'),
    path('success/', success, name='success'),
]

<form method="post">
  {% csrf_token %}
  {{ form.as_p }}
  <button type="submit">注册</button>
</form>

<h1>注册成功！</h1>