blogproject/settings.py
'''
DATABASES = {
 'default': {
  'ENGINE': 'django.db.backends.sqlite3',
  'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
 }
}
'''

DATABASES = {
 'default': {
  'ENGINE': 'django.db.backends.mysql', #固定配置
  'HOST': '127.0.0.1',#mysql地址
  'PORT': '3306',#端口号
  'NAME': 'guest',#库名（组名）
  'USER': 'root',#用户
  'PASSWORD': '123456',#密码
  'OPTIONS': {'init_command': "SET sql_mode='STRICT_TRANS_TABLES'", },
 }
}

PS D:\xuexi\python\\django2\blogproject> python manage.py makemigrations
Migrations for 'blog':
 blog\migrations\0001_initial.py:
 - Create model Category
 - Create model Post
 - Create model Tag
 - Add field tags to post
PS D:\xuexi\python\web接口开发\django2\blogproject> python manage.py migrate
Operations to perform:
 Apply all migrations: admin, auth, blog, contenttypes, sessions
Running migrations:
 Applying contenttypes.0001_initial... OK
 Applying auth.0001_initial... OK
 Applying admin.0001_initial... OK
 Applying admin.0002_logentry_remove_auto_add... OK
 Applying contenttypes.0002_remove_content_type_name... OK
 Applying auth.0002_alter_permission_name_max_length... OK
 Applying auth.0003_alter_user_email_max_length... OK
 Applying auth.0004_alter_user_username_opts... OK
 Applying auth.0005_alter_user_last_login_null... OK
 Applying auth.0006_require_contenttypes_0002... OK
 Applying auth.0007_alter_validators_add_error_messages... OK
 Applying auth.0008_alter_user_username_max_length... OK
 Applying blog.0001_initial... OK
 Applying sessions.0001_initial... OK