default.aspx.cs

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using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Web.Caching;

public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (Cache["count"] == null)
        {
            int P_int_count = 1;
            CacheItemRemovedCallback CIRCallback = new CacheItemRemovedCallback(onCacheRemove);
            Label1.Text = "缓存数字：" + P_int_count.ToString();
            Cache.Add("count", P_int_count, null, DateTime.Now.AddSeconds(10), 
                TimeSpan.Zero, CacheItemPriority.Normal, CIRCallback);
        }
        else
        {
            Label1.Text = "缓存数字：" + Cache["count"].ToString();
        }
    }
    private void onCacheRemove(string P_str_key, object P_obj_count,CacheItemRemovedReason CIRReason)
    {
        CacheItemRemovedCallback CIRCallback = new CacheItemRemovedCallback(onCacheRemove);
        Cache.Add(P_str_key, (int)P_obj_count + 1, null, DateTime.Now.AddSeconds(10),
            TimeSpan.Zero, CacheItemPriority.Normal, CIRCallback);
    }
}