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<td>
<asp:DropDownList ID="time" runat="server">
<asp:ListItem Selected="True" Value="1">²»±£´æ</asp:ListItem>
<asp:ListItem Value="14">Á½ÖÜ</asp:ListItem>
<asp:ListItem Value="30">Ò»¸öÔÂ</asp:ListItem>
<asp:ListItem Value="0">²»´´½¨</asp:ListItem>
</asp:DropDownList>
</td>
loginÒ³Ãæºǫ́¹ØÓÚCookieµÄ´úÂ룺
protected void Login_Click(object sender, EventArgs e)
{
//´´½¨Ò»¸öеÄCookie
HttpCookie newCookie = new HttpCookie("User");
//ÍùCookieÀïÃæÌí¼ÓÖµ£¬¾ùΪ¼ü/Öµ¶Ô¡£Cookie¿ÉÒÔ¸ù¾Ý¹Ø¼ü×ÖѰÕÒµ½ÏàÓ¦µÄÖµ
newCookie.Values.Add("Name",nameID.Text.Trim());
newCookie.Values.Add("Pwd",pwdID.Text.Trim());
//ÉèÖÃSessionµÄÖµ
Session["Name"] = nameID.Text.Trim();
Session["Pwd"] = pwdID.Text.Trim();
if (time.SelectedValue == "14")
{
newCookie.Expires = DateTime.Now.AddDays(14);
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