答案:你可以测试一下就知道了
DECLARE @Number int;
SET @Number = 50;
IF @Number > 100
PRINT 'The number is large.';
ELSE
BEGIN
IF @Number < 10
PRINT 'The number is small.';
ELSE
PRINT 'The number is medium.';
END ;
GO
其他:没有吧 当然有 if ** else if ** else ** 句式是成立的