Django连接MySql数据库步骤

a. 先写类
    from django.db import models

    # cmdb_userinfo
    class UserInfo(models.Model):
        username = models.CharField(max_length=32)
        password = models.CharField(max_length=64)

b. 注册APP

    INSTALLED_APPS = [
        'django.contrib.admin',
        'django.contrib.auth',
        'django.contrib.contenttypes',
        'django.contrib.sessions',
        'django.contrib.messages',
        'django.contrib.staticfiles',
        'cmdb',
    ]
c. 执行命令
    python manage.py  makemigrations
    python manage.py  migrate

d. ********** 注意 ***********
    Django默认使用MySQLdb模块链接MySQL
    主动修改为pymysql，在project同名文件夹下的__init__文件中添加如下代码即可：
        import pymysql
        pymysql.install_as_MySQLdb()