SELECT supe_housemessage.itemid,supe_houseitems.itemid FROM supe_housemessage,supe_houseitems where supe_housemessage.xz='出租' and supe_houseitems.catid='1'
SELECT supe_housemessage.itemid,supe_houseitems.itemid FROM supe_housemessage,supe_houseitems where supe_housemessage.itemid=supe_houseitems.itemid and supe_housemessage.xz='出租' and supe_houseitems.catid='1' ;
试一下吧!
SELECT * FROM supe_housemessage,supe_houseitems where supe_housemessage.itemid=supe_houseitems.itemid and supe_housemessage.xz='出租' and supe_houseitems.catid='1'