原文: http://west-wind.com/weblog/posts/269.aspx

Request Property

Function and Example

ApplicationPath

Returns the a Web server relative path to your application root

/WestwindWebStore/

PhysicalApplicationPath

Returns a local file system path to your application root

D:\inetpub\wwwroot\WestWindWebStore\

PhysicalPath

Returns the full file system path to the currently executing script

D:\inetpub\wwwroot\WestWindWebStore\Item.aspx

CurrentExecutionFilePath

FilePath

Path

In most situations all of these return the virtual path to the currently executing script relative to the Web Server root.

/WestwindWebStore/item.aspx

PathInfo

Returns any extra path following the script name. Rarely used – this value is usually blank.

/WestwindWebStore/item.aspx/ExtraPathInfo

RawUrl

Returns the application relative URL including querystring or pathinfo

/WestwindWebStore/item.aspx?sku=WWHELP30

Url

Returns the fully qualified URL including domain and protocol

http://www.west-wind.com/Webstore/item.aspx?sku=WWHELP30  

Page.TemplateSourceDirectory

Control.TemplateSourceDirectory

Returns the virtual path of the currently executing control (or page). Very useful if you need to know the location of your ASCX control instead of the location of the page.

/WestwindWebStore/admin