1using System;
 2using System.Data;
 3using System.Configuration;
 4using System.Collections;
 5using System.Web;
 6using System.Web.Security;
 7using System.Web.UI;
 8using System.Web.UI.WebControls;
 9using System.Web.UI.WebControls.WebParts;
10using System.Web.UI.HtmlControls;
11
12public partial class Cahce_Data : System.Web.UI.Page
13...{
14    protected void Page_Load(object sender, EventArgs e)
15    ...{
16        // 一看就懂
17        if (Cache["key"] == null)
18        ...{
19            Cache.Insert("key", DateTime.Now, null, DateTime.Now.AddSeconds(10), TimeSpan.Zero);
20        }
21
22        DateTime dt = (DateTime)Cache["key"];
23        lbl.Text = dt.ToString();
24    }
25}
26