上传图片的方法

         private string fileUpload()
        {
            string savePath = Server.MapPath("/image");//获得服务器的图片文件夹路径
            string filename;

            if (this.fuImage.HasFile)
            {
                filename = fuImage.FileName;

                fuImage.SaveAs(savePath + @"/" + filename); //将文件保存到web服务器上的指定路径

                return filename;
            }
            else
            {
                Page.Response.Write("出错了！");
                return "";
            }
        }