报错啦！
错误号：1064
sql错误状态：42000
错误信息：you have an error in your sql syntax; check the manual that corresponds to your mysql server version for the right syntax to use near ')' at line 1
sql信息：select keyname from keywords where kid in (,)

报错啦！
错误号：1064
sql错误状态：42000
错误信息：you have an error in your sql syntax; check the manual that corresponds to your mysql server version for the right syntax to use near ')' at line 1
sql信息：select kid,keyname from keywords where kid in ()