SELECT Elect.stuID, Elect.courceID, Elect.teaID, Cource.courceName, Teachaer.teaName, Cource.courceTime, Cource.courceAddress, Cource.courceInfo FROM Elect INNER JOIN Cource ON Elect.courceID = Cource.courceID AND Elect.teaID = Cource.teaID INNER JOIN Teacher ON Elect.teaID = Teacher.teaID AND Cource.teaID = Teacher.teaID WHERE (Elect.stuID = @stuID)
(Elect.stuID = @stuID)是什么意思,