python django orm build table

1. Create a django file from the command line

进入指定目录
django-admin startproject item
cd item
python manage.py startapp item0

2. Write sql statement

setting

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'item0',
]

DATABASES = {
    
    
    'default': {
    
    
        'ENGINE':'django.db.backends.mysql',
        'NAME':'practice',
        'USER':'root',
        'PASSWORD':'',
        'HOST':'127.0.0.1',
        'PORT':'3306',
    }
}

init.py  admin.py 同级文件

import pymysql
pymysql.install_as_MySQLdb()

models.py

from django.db import models
# Create your models here.
class Book(models.Model):
    name = models.CharField(max_length=20)
    price = models.IntegerField()
    pub_date = models.DateField()

运行命令
python manage.py makemigrations
python manage.py migrate