答案一
Page.Request.UrlReferrer.ToString()
答案二
本页地址:
Request.URL;
上页地址:
Request.UrlReferrer
Request.ServerViables["http_referer"]
Request.RawUrl
Request.RawUrl.QueryAndPath
System.IO.Path.GetFileName(Request.FilePath.ToString())
<script>
var url = document.location.href;
</script>
