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function chkStr(Astr)
if isnull(Astr) then
chkStr = "无限大"
elseif isnumeric(Astr) and Astr = 0 then
chkStr = "-"
else
chkStr = Astr
end if
end function
AA = chkStr(A)
BB = chkStr(B)
if AA = BB and (AA = "无限大" or AA = "-") then
Response.write AA
else
Response.write AA & "<br>" & BB
end if