Python数据库操作简易类

import pymysql


def connect_db(db):
    db = pymysql.connect(host='xx.xx.xx.xx', port=3307, user='xxxx', passwd='xxxx', db=db, charset='utf8')
    return db


def execute_sql(db, sql):
    cursor = db.cursor()
    cursor.execute(sql)
    db.commit()
    data = cursor.fetchone()
    return data


def disconnect_db(db):
    db.close()


if __name__ == '__main__':
    db = connect_db('feed')
    sql = 'select * from feed;'
    res = execute_sql(db, sql)
    disconnect_db(qa_db)
    print(res)