python使用pymysql操作数据库

conn = pymysql.connect(host=DBHOST, user=DBUSER,
                               password=DBPWD, database=DBNAME(数据库名字),
                               charset="utf8") 
mysql = conn.cursor(cursor=pymysql.cursors.DictCursor)

conn.ping(reconnect=True)

mysql.execute("select * from stable where id = %s and sc = %s", (rid, sc))

result = mysql.fetchone()

try:
    mysql.scroll(0, mode=‘absolute‘)
except:
    pass

--

conn.ping(reconnect=True)
mysql.execute("UPDATE stable SET FLAG = 1,DEL_FLAG = 0 WHERE ID = %s" % mn_id)
conn.commit()