web.config
<appSettings>
		<!--
		Զÿʼ==========================================================================
		ע⣺޸ġvalue="***"֣طҪ޸ģ
		-->
		<add key="SqlConn" value="./data/csdown.mdb"/>
		<!--
		Զý==========================================================================
		-->
	</appSettings>



csļ治ֱ
protected OleDbConnection Con=new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+Server.MapPath(ConfigurationSettings.AppSettings["SqlConn"]));,,,ϵͳʾ޷ҵserver.mappathϢġ
ֻʹĴ
protected OleDbConnection Con=new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+System.Web.HttpContext.Current.Server.MapPath(ConfigurationSettings.AppSettings["SqlConn"]));
ںǿʹ OleDbConnection Con=new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+Server.MapPath(ConfigurationSettings.AppSettings["SqlConn"]))   
page_load()ͿԶ
OleDbConnection Con=new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+Server.MapPath(ConfigurationSettings.AppSettings["SqlConn"])) 