是否有用于生成链接的通用ASP.NET MVC帮助程序？

I know of the ASP.NET MVC ActionLink helper for generating links to the application's actions, and find it very useful. However, I haven't been able to find a corresponding helper for generating links based on absolute URLS (i.e., to external resources). Is there a helper for this purpose?I know of the ASP.NET MVC ActionLink helper for