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以下这样写会报错： [Error] 10 - 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 'end if' at line 8 create procedure test(in a int) if a > 1 then select 1; elseif a>2 then select 2; else end if; [xhtml]create procedure test(in a int) if a > 1 then select 1; elseif a>2 then select 2; else end if; 应改成以下这样： create procedure test(in a int) if a > 1 then select 1; elseif a>2 then select 2; else -- do nothing -- set @tmp=1; end if; 作者 zhu473105308 bitsCN.com