后台添加Css或Js文件

protected void Page_Load(object sender, EventArgs e)
        {
            this.Page.Header.Controls.Add(new LiteralControl("<script type=\"text/javascript\" src=\"js/EmailServerJs.js\"></script>"));
            this.Page.Header.Controls.Add(new LiteralControl("<script type=\"text/css\" src=\"css/public.css\"></script>"));

        }