很奇怪!!
大力 2003-10-09 01:48:09 ----------------------------
declare @s as char(15)
set @s='33'
set @s= '12' + @s
select @s
结果是 1233
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declare @s as char(15)
set @s='33'
set @s= @s + '12'
select @s
结果是 33
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怎解??