不多说，贴代码。

using System;using System.Web.UI.HtmlControls;namespace webtest{    public partial class Aspx : System.Web.UI.Page    {        protected void Page_Load(object sender, EventArgs e)        {            //动态加载javascript            HtmlGenericControl js = new HtmlGenericControl("script");            js.Attributes.Add("type", "text/javascript");            js.Attributes.Add("src", "/Scripts/commonjs.js");            Page.Header.Controls.AddAt(1, js);            //动态加载css            HtmlLink css = new HtmlLink();            css.Href = "/Styles/site.css";            css.Attributes.Add("rel", "stylesheet");            css.Attributes.Add("type", "text/css");            Page.Header.Controls.AddAt(1, css);        }    }}

动态生成的HTML

                  
      
        
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