?using System;
using System.Data;
using System.Configuration;
using System.Collections;
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;
    public partial class Head : System.Web.UI.UserControl
    {
        public Label user
        {
            get
            {
                return label;
            }
            set
            {
                user = value;
            }
        }
        protected void Page_Load(object sender, EventArgs e)
        {
            if (Session["userID"] != null)
            {
                label.Text = "<font color=green size=2><b>" + (string)Session["userID"] + "</b></font>";
            }
            else 
            {
                label.Text = "<font color=red size=2><b>游客</b></font>";

            }
        }
    }