if bh="" then
sql="select * from sl where bh like \'%"&ss&"%\'"
else
bh=clng(bh)
sql="select * from sl where bh=" & bh & " "
end if
if nam<>"" then
sql=sql&" and nam like \'%"&nam&"%\' "
end if
if jz<>"" then
sql=sql&" and jz like \'%"&jz&"%\' "
end if
if pc<>"" then
pc=cint(pc)
sql=sql&" and pc="&pc&" "
end if
if zw<>"" then
sql=sql&" and zw like \'%"&zw&"%\' "
end if