显示电脑的所有

 private string UserInfo()
    {
        string info = "<br/>当前用户IP：<font color='red'>" + Page.Request.UserHostAddress + "</font>";
        info += "<br/>当前电脑名称：<font color='red'>" + System.Net.Dns.GetHostName() + "</font>";
        //info += "<br/>当前操作系统：<font color='red'>" + Request.Browser.Platform + "</font>" + "<br/>";
        info += "<br/>当前操作系统：<font color='red'>" + SystemCheck() + "</font>" + "<br/>";
        return info;
    }