python的ORM框架peewee的使用操作Sqlite和mysql，

python的ORM框架peewee的使用操作Sqlite和mysql，

安装:

pip install peewee

pip install pymysql

使用：

第一步：在项目中创建文件xxx.db

 第二步：Navicat打开xxx.db

 

 

第三步：建表

第四步：peewee连接数据库：示例 mysql和sqlite

import os
from peewee import *

db_mysql = MySQLDatabase('demo', user='root', password='root', host='localhost', port=3306)
db_sqlite = SqliteDatabase(os.getcwd() + '\demo.db')


class User(Model):
    login_name = TextField()
    user_name = TextField()
    cred_num = TextField()

    class Meta:
        database = db_mysql
        # 显示指定表名
        table_name = 'user' 


class Account(Model):
    id = IntegerField()
    username = TextField()
    password = TextField()

    class Meta:
        database = db_sqlite

class Announcement(Model):
    # 标题
    title = TextField()
    # 内容
    content = TextField()
    # 发布日期
    release_date = TextField()
    # 浏览次数
    read_times = IntegerField()

    class Meta:
        database = db_mysql

第五步：CRUD

if __name__ == '__main__':
    announcement = Announcement(title="标题", content="内容", release_dat="日期", read_times=1)
    announcement.save()