django中的数据库配置
对数据库的配置是在settings.py文件中，打开这个文件并查找DATABASES，如图所示 其中ENGINE是告诉Django使用的是哪个数据库引擎，常用的数据库 有PostgreSQL、MySQL、sqllite3、oracle等，但无论选择使用哪个数据库服务器，都必须下载和安装对应的数据库适配
对数据库的配置是在settings.py文件中，打开这个文件并查找DATABASES，如图所示
其中ENGINE是告诉Django使用的是哪个数据库引擎，常用的数据库 有PostgreSQL、MySQL、sqllite3、oracle等，但无论选择使用哪个数据库服务器，都必须下载和安装对应的数据库适配器。
“NAME”是数据库的名字，图中数据库的名字是django，“USER”告诉Django用哪个用户连接数据库，“PASSWORD”告诉Django连接用户的密码，HOST告诉Django连接哪一台主机的数据库服务器。若数据库用的是SQLite，user、password、host可空白，不填写
配置完成后，可通过python manage.py shell 进入交互解释器界面，输入下面这些命令来测试你的数据库配置：
from django.db import connection
cursor=connection.cursor()
如果没有显示什么错误信息，那么你的数据库配置是正确的，否则，你就得查看错误信息来纠正错误，常见错误信息，如下图所示：
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