on error resume next connstr="DBQ="+server.mappath("data/info.asp")+";DefaultDir=;DRIVER={Microsoft Access Driver (*.mdb)};" set conn=server.createobject("ADODB.CONNECTION") if err then err.clear else conn.open connstr if err then err.clear end if end if %> 中on error resume next怎么解释?谢谢 DefaultDir=;怎么解释?