create proc davinci (@intarray varchar(1000))a
s--******************--2004.7--******************
declare @sp varchar(1)set @sp=','
declare @i int,@j int,@maxq int
--初始化
if charindex(@sp,@intarray)=0begin
if object_id('tempdb..##t') is not null drop table ##t
if isnumeric(@intarray)=0 begin print '输入参数必须是数字。'
return end create table ##t(id int identity(1,1),q int)
set @i=floor(10+rand()*30)
insert into ##t(q) values(@i)
print '目标:'+cast(@i as varchar(2))end
--轮回游戏
elsebegin
--判断游戏是否结束
if object_id('tempdb..##t') is null
begin print '本回合已经结束,大侠请重新来过!'
return end
--验证用户输入数合法性
if isnumeric(right(@intarray,charindex
(@sp,reverse(@intarray))-1))=0
begin print
'输入参数必须是数字。'
return end
set @i=cast(right(@intarray,charindex
(@sp,reverse(@intarray))-1) as int)
set @maxq=(select max(q) from ##t where id>1)
if @i<=isnull(@maxq,0)
begin print
'输入参数必须大于当前最大数。'
return end if @i-isnull(@maxq,1)>3 begin print
'输入参数超过范围。'
return end if @i>(select q from ##t where id=1)
begin print '输入参数不得大于目标数。'
return end
--插入用户输入数
insert into ##t(q) values(@i) print '你输入:'
+cast(@i as varchar(2))
--判断胜负
if @i=(select q from ##t where id=1)
begin drop table ##t ----------------------------------'
print '胜败乃兵家常事,大侠请重新来过!'
return end if @i=(select q from ##t where id=1)-1
begin drop table ##t
print '达芬奇:
'+cast(@i+1 as varchar(2)) print '-----------------'
print '恭喜!你获胜了。'
return end
--插入达芬奇应答数
if (select q-1 from ##t where id=1)%4=0
set @j=(select count(id) from ##t where id%2=1)*4
else begin set @j=(select q-1 from ##t where id=1)%4+
((select count(id) from ##t where id%2=1)-1)*4
if @j<(select max(q) from ##t where id>1)
set @j=@j+4 end if @i=@j s
et @j=@j+floor(1+rand()*3)insert into ##t values(@j)
print '达芬奇:'+cast(@j as varchar(2))end
--完整版显示select
目标数=q,你输入=null,达芬奇=null,
下次输入='1,2,3'
from ##t where id=1union allselect
目标数=null,你输入,达芬奇,
下次输入=case when charindex(','+目标数+',',','+下次输入+',')=0
then 下次输入 else left(left(下次输入,charindex
(','+目标数+',',','+下次输入+',')
+len(目标数)), len(left(下次输入,charindex
(','+目标数+',',','+下次输入+',')
+len(目标数)))- charindex(',',reverse(left(下次输入,
charindex(','+目标数+',',','+下次输入+',')+len(目标数)))))
endfrom (select 目标数,你输入,达芬奇,
下次输入=cast(达芬奇+1 as varchar(2))+',
' +cast(达芬奇+2 as varchar(2))+',
' +cast(达芬奇+3 as varchar(2))from
(select 目标数=cast((select q from ##t where id=1) as varchar(2)),
你输入=max(case when id%2=0 then q else 0 end),
达芬奇=max(case when id%2=1 then q else 0 end)
from ##twhere id>1group by floor(id/2)) a) b
/*--简化版显示select case when id=1 then '目标数:
' when id%2=0 then '你输入:'when id%2=1 and id>1 then
'达芬奇:' end ,qfrom ##t*/ |