<style>
#menu li.active{
　　color:red;
}
</style>
@{
    string requestUrl = Request.Url.ToString();
}

  <script>
        $(function() {
            if (‘@requestUrl‘ == "")
                return;
            var arr = ["/Print", "/Report", "/ReprotManage", "/Check"]; //连接菜单a中的href值
            $.each(arr, function(i, v) {
                if (‘@requestUrl‘.indexOf(v) != -1)
                    $("#menu li a[href$=‘" + v + "‘]").attr("href", "javascript:void(0)").parent().addClass("active");
            });
        });
    </script>