注意：需要在项目中安装mysqlclient包

 setting文件数据库相关修改：

python">DATABASES = {'default': {'ENGINE': 'django.db.backends.mysql','NAME': 'mysite3','USER': 'root','PASSWORD': 'bai12345','HOST': '127.0.0.1','PORT': '3306',}
}

什么是模型？：

ORM框架：

 

 

注册app需要在setting中添加：

python">INSTALLED_APPS = ['django.contrib.admin','django.contrib.auth','django.contrib.contenttypes','django.contrib.sessions','django.contrib.messages','django.contrib.staticfiles','music','news','sport','bookstore'
]

 

python">from django.db import models# Create your models here.
class Book(models.Model):title = models.CharField("书名", max_length=100)author = models.DecimalField('价格', max_digits=10, decimal_places=2)

 

执行后结果： 生成的表名为app名_小写类名