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HttpCookie myHttpCookie = new HttpCookie("MyWebSite");
DateTime myDateTime = System.DateTime.Now;
TimeSpan myTimeSpan = new TimeSpan();
if (rbHour.Checked == true)
{
    myTimeSpan = new TimeSpan(0, 1, 0, 0, 0);
    myTime = 0;
}
if (rbDay.Checked == true)
{
    myTimeSpan = new TimeSpan(1, 0, 0, 0, 0);
    myTime = 1;
}
myHttpCookie.Expires = myDateTime.Add(myTimeSpan);
myHttpCookie.Values.Add("UserName", Server.HtmlEncode(txtUserName.Text.Trim().ToString()));
myHttpCookie.Values.Add("Sex", Server.HtmlEncode(mySex));
myHttpCookie.Values.Add("SelectTime", Server.HtmlEncode(myTime.ToString()));
Response.AppendCookie(myHttpCookie);
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if (Request.Cookies["MyWebSite"] != null)
{
    myUserName = Request.Cookies["MyWebSite"]["UserName"].ToString();
    mySex = Request.Cookies["MyWebSite"]["Sex"].ToString();
    myTime = Request.Cookies["MyWebSite"]["SelectTime"].ToString();
}
if (myUserName != null && mySex != null)
{
    HttpCookie myHttpCookie = new HttpCookie("MyWebSite");
    if (myHttpCookie != null)
    {
        myHttpCookie.Values["UserName"] = myUserName.ToString();
        myHttpCookie.Values["Sex"] = mySex.ToString();
        myHttpCookie.Values["SelectTime"] = myTime.ToString();
        DateTime myDateTime=System.DateTime.Now;
        if (myTime.ToString() == "0")
        {
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