CREATE function fGetPy(@str varchar(500)='') returns varchar(500) as begin declare @strlen int,@return varchar(500),@ii int declare @c nchar(1),@chn nchar(1) select @strlen=len(@str),@return='',@ii=0 set @ii=0 while @ii<@strlen begin select @ii=@ii+1,@chn=substring(@str,@ii,1) if @chn>='吖' select @c = char(count(*)+63) from ( select top 27 * from ( select chn = '吖' union all select '八' union all select '嚓' union all select '咑' union all select '妸' union all select '发' union all select '旮' union all select '铪' union all select '丌' --because have no 'i' union all select '丌' union all select '咔' union all select '垃' union all select '嘸' union all select '拏' union all select '噢' union all select '妑' union all select '七' union all select '呥' union all select '仨' union all select '他' union all select '屲' --no 'u' union all select '屲' --no 'v' union all select '屲' union all select '夕' union all select '丫' union all select '帀' union all select @chn ) as a order by chn COLLATE Chinese_PRC_CI_AS ) as b where b.chn <=@chn else set @c=@chn set @return=@return+@c end return(@return) end