HttpFileCollection 类使用

public ActionResult GetForm()
        {
            HttpRequest request = System.Web.HttpContext.Current.Request;
            HttpFileCollection FileCollect = request.Files;  
            if (FileCollect.Count > 0)          //如果集合的数量大于0
            {
                foreach (string str in FileCollect)
                {
                    HttpPostedFile FileSave = FileCollect[str];  //用key获取单个文件对象HttpPostedFile
                    string imgName = DateTime.Now.ToString("yyyyMMddhhmmss");
                    string imgPath = "/" + imgName + FileSave.FileName;     //通过此对象获取文件名
                    string AbsolutePath = Server.MapPath(imgPath);
                    FileSave.SaveAs(AbsolutePath);              //将上传的东西保存
                    Response.Write("<img src='" + imgPath + "'/>");
                }
            }
            return Content("键值对数目：" + FileCollect.Count);
        }