C#后台引用js文件？
我是这样写的，报$未定义，所以想应该是没有引用成功，请问该怎么修改啊？           
 if (string.IsNullOrEmpty(Session["UserId"] as string))
            {
                Response.Write("<script src='~/Scripts/jquery-1.10.0.js'></script>");
                Response.Write("<script src='~/Scripts/jquery-easyui/jquery.easyui.min.js'></script>");
                Response.Write("<script src='~/Scripts/jquery-easyui/locale/easyui-lang-zh_CN.js'></script>");
                Response.Write("<link href='~/Scripts/jquery-easyui/themes/default/easyui.css' rel='stylesheet' />");
                ClientScript.RegisterStartupScript(this.Page.GetType(), "", "<script language='javascript' >$.message.alert('您的下载方式错误，请登陆后下载');</script>");
            }
------解决方案--------------------
Response.Write("<script src='~/Scripts/jquery-1.10.0.js'></script>");
                Response.Write("<script src='~/Scripts/jquery-easyui/jquery.easyui.min.js'></script>");
                Response.Write("<script src='~/Scripts/jquery-easyui/locale/easyui-lang-zh_CN.js'></script>");
                Response.Write("<link href='~/Scripts/jquery-easyui/themes/default/easyui.css' rel='stylesheet' />");

把里面引用的script放到head当中，Response.Write直接刷到页面最顶层。
------解决方案--------------------
            LiteralControl control = new LiteralControl();