A.mysqldb B.mysqlclient C.SQLAlchemy D.pymysql
A.引入模塊 B.獲取與數(shù)據(jù)庫的連接 C.執(zhí)行SQL語句 D.關(guān)閉數(shù)據(jù)庫連接
A.fetchone() B.fetchmany(size) C.fetchall() D.close()