费斯托脉冲阀价格:对不起,没有你要查询的信息<有值的,但为什么会这样呢?>

<%
const MaxPerPage=12
dim totalPut
dim CurrentPage
dim TotalPages
dim i,j
if not isempty(request("page")) then
currentPage=cint(request("page"))
else
currentPage=1
end if
dim rs
dim sql
dim bz
bz=request("bz")
if not isempty(request("selAnnounce")) then
idlist=request("selAnnounce")
if instr(idlist,",")>0 then
dim idarr
idArr=split(idlist)
dim id
for i = 0 to ubound(idarr)
id=clng(idarr(i))
call deleteannounce(id)
next
else
call deleteannounce(clng(idlist))
end if
end if
set rs=server.createobject("adodb.recordset")
Select Case bz
case "1"
sql="select * from News where bz="+cstr(bz)+" order by NewsID desc"
case "8"
sql="select * from News where bz="+cstr(bz)+" order by NewsID desc"
end select
rs.open sql,conn,1,1
if rs.eof and rs.bof then
response.write"<SCRIPT language=JavaScript>alert('对不起，没有您要查询的信息！');"
response.write"javascript:history.go(-1)</SCRIPT>"
else
%>

大家看看这段有什么错误,本来是有值的,但我点链接的时候还是提示"对不起,没有你要查询的信息"