STATIC_URL = '/static/'
STATICFILES_DIRS=[
  os.path.join(BASE_DIR, "static")
]

TEMPLATES = [
  {
    'BACKEND': 'django.template.backends.django.DjangoTemplates',
    'DIRS': [os.path.join(BASE_DIR,'templates')],
    'APP_DIRS': True,
    'OPTIONS': {
      'context_processors': [
        'django.template.context_processors.debug',
        'django.template.context_processors.request',
        'django.contrib.auth.context_processors.auth',
        'django.contrib.messages.context_processors.messages',
        'django.template.context_processors.media',添加这行或者下面一行
        #'django.core.context_processors.media',python3会报错
      ],
    },
  },
]