這里主要采用cookies共享。
步驟1：[寫cookies]
??????????? //創建一個HttpCookie對象
??????????? HttpCookie cookie = new HttpCookie("uId");
??????????? //設定此cookies值
??????????? cookie.Value = "uIdValue";
??????????? cookie.Domain= "company.com";
??????????? //設定cookie的生命周期，在這里定義為一個小時
??????????? DateTime dtNow = DateTime.Now;
??????????? TimeSpan tsMinute = new TimeSpan(0, 1, 0, 0);
??????????? cookie.Expires = dtNow + tsMinute;
??????????? //加入此cookie
??????????? Response.Cookies.Add(cookie);
??????????? Response.Write(Request.Cookies["uId"].Value.ToString() + "Cookie創建完畢 <br > <hr > ");
步驟2：[讀cookies]
?????????? HttpCookie cookie = Request.Cookies["uId"];
??????????? if (cookie != null)
??????????? {
?????????????????? Response.Write(Request.Cookies["uId"].Value.ToString();
??????????? }

步驟3：[刪除cookies]? 注銷用

????????? HttpCookie MyCo = HttpContext.Current.Request.Cookies["uId"];
??????????? if (HttpContext.Current.Request.ServerVariables["Http_Host"].IndexOf("company.com") >= 0)
??????????? {
??????????????? MyCo.Domain = "company.com";
??????????? }
??????????? MyCo.Expires = DateTime.Now.AddHours(-24);
??????????? Response.Cookies.Add(MyCo);//這一句非常重要

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