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dim jf
set conn=server.createobject("adodb.connection")
connstr="Driver={Sql Server};Server="&Sqlip&";Database="&Sqldb&";Uid="&SqlUid&";Pwd="&SqlPwd&";"
conn.Open connstr
Set RS=Conn.Execute("SELECT sum(cs) as ok from aaa WHERE (bbb='abc')")
jf=rs("ok")
if jf="" then
response.write"<script>alert('ÄãûÓзÖÊý!');history.go(-1);</Script>"
response.end
End If



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if jf=0 then

if jf=0 then ?
if isnull(jf) then ?
if isempty(jf) then ?

if isnull(jf)  then


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if jf=o then

if IsNull(jf) then



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dim a,b,c
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{
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