HttpCookie cookie = new HttpCookie("shop");//cookie.values集合能夠存儲(chǔ)多個(gè)鍵值對(duì)，其中add方法的第一個(gè)參數(shù)是商品編號(hào)，第二個(gè)參數(shù)是商品名稱(chēng)和價(jià)格，中間用都好分隔。cookie.Values.Add("1", "電腦,2000");cookie.Values.Add("2", "電視,2200");cookie.Values.Add("3", "冰箱,2300");cookie.Expires = DateTime.Now.AddDays(1);Response.Cookies.Add(cookie);

/// <summary>/// 顯示購(gòu)物車(chē)/// </summary>/// <param name="sender"></param>/// <param name="e"></param>protected void Button2_Click(object sender, EventArgs e){  LoadShop();}//顯示購(gòu)物車(chē)private void LoadShop(){  //首先判斷名稱(chēng)為"shop"的cookie是否存在  if (Request.Cookies["shop"] != null)  {    HttpCookie cookie = Request.Cookies["shop"];    StringBuilder sb = new StringBuilder();    sb.Append("<table>");    //便利此cookie的values集合，取出每一個(gè)鍵值對(duì)    for (int i = 0; i < cookie.Values.Count; i++)    {      sb.Append("<tr>");      sb.Append("<td>");      sb.Append("<a href=WebForm5.aspx?id=" + cookie.Values.AllKeys[i] + ">刪除<a/>");      sb.Append("</td>");      sb.Append("<td>");      //獲取每個(gè)鍵值對(duì)中的值      string[] shops = cookie.Values[i].Split(',');      //獲取商品名稱(chēng)      sb.Append("<td>" + shops[0] + "</td>");      //獲取商品價(jià)格      sb.Append("<td>" + shops[1] + "</td>");      sb.Append("</td>");      sb.Append("</tr>");    }    sb.Append("</table>");    mydiv.InnerHtml = sb.ToString();  }}

protected void Page_Load(object sender, EventArgs e){  if (!IsPostBack)  {    if (!string.IsNullOrEmpty(Request.QueryString["id"]))    {      string id = Request.QueryString["id"];      DeleteShop(id);    }  }}private void DeleteShop(string id){  if (Request.Cookies["shop"] != null)  {    HttpCookie cookie = Request.Cookies["shop"];    cookie.Values.Remove(id);    if (cookie.Values.Count == 0)    {      cookie.Expires = DateTime.Now.AddDays(-1);    }    Response.Cookies.Add(cookie);    LoadShop();  }}