安装django：
pip install django
安装依赖
pip install -r requirements.txt
创建项目：
django-admin startproject project_name
创建应用
django-admin startapp app_name
运行端口：
python manage.py runserver
python manage.py runserver 8080
创建数据库命令
python3.9 manage.py makemigrations
python3.9 manage.py migrate
python manage.py makemigrations
python manage.py migrate