错误原因

      由于django框架的settings.py配置了中间件，为了防止跨站请求伪造，form表单POST方式会导致出现报错

解决办法：

将'django.middleware.csrf.CsrfViewMiddleware'注释

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    # 'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

参考连接：

https://blog.csdn.net/you23hai45/article/details/107931579