cookie记住密码

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cookie记住密码：

C#代码  
/// <summary>  
    /// 记住密码  
    /// </summary>  
    private void RememberPassword()  
    {  
        if (cbRememberPW.Checked)  
        {  
            //记住密码  
            System.Web.HttpCookie newCookie = new HttpCookie("user");  
            newCookie.Values["username"] = tbUserName.Value.Trim();  
            string strPW = tbPassword.Value.Trim();  //最好加密后的密码放到COOKIE内  
            newCookie.Values["password"] = strPW;  
            newCookie.Expires = DateTime.Now.AddDays(15);  
            Response.AppendCookie(newCookie);  
        }  
        else  
        {  
            System.Web.HttpCookie cookie = Request.Cookies["user"];  
            if (cookie != null)  
            {  
                cookie.Expires = DateTime.Now.AddDays(-2);  
                Response.Cookies.Set(cookie);  
            }  
        }  
    }  

读取cookie中的密码

C#代码  
//在页面加载时 调用此方法  
   /// <summary>  
    /// 读取cookie中的密码  
    /// </summary>  
    private void ReadPassword()  
    {  
        if (Request.Cookies["user"] != null)  
        {  
            string strPassword = Request.Cookies["user"]["password"].ToString();  
                
            tbUserName.Value = Request.Cookies["user"]["username"].ToString();  
            cbRememberPW.Checked = true;  
             
        }  
    }  