if request("sheng"

="" and request("shi"

="" then
rs.open "SELECT * FROM lvshi WHERE username like '%"&request("name"

&"%' ORDER BY addtime desc".conn,1,1
else
rs.open "SELECT * FROM lvshiWHERE username like '%"&request("name"

&"%' and sheng ="&request("sheng"

&"and city ="&request("shi"

&"ORDER BY addtime desc",conn,1,1