安装和搭建
pip install Django #安装Django
django-admin.py startproject learn #创建项目
cd learn #移动到项目目录
python manage.py startapp pesdb #新建app
python manage.py makemigrations #
python manage.py migrate #
python manage.py runserver # 启动开发服务器
python manage.py createsuperuser # 创建超级管理员
python manage.py shell #进入项目环境终端，退出用quit()或Ctrl + D
参考链接
https://code.ziqiangxuetang.com/django/django-basic.html
https://blog.csdn.net/liuweiyuxiang/article/details/71150965
https://www.runoob.com/django/django-first-app.html
可能出现的错误信息
(null): can't open file 'manage.py': [Errno 2] No such file or directory
原因：没有cd到项目目录
cd learn
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