davidctwood的部落格

string path = 檔案路徑;
           string filename = 檔名;
           
           try
           {
               //刪除舊檔
               FileInfo fi = new FileInfo(Path.Combine(path, filename));
               fi.Delete();
               //上傳新檔
               if (file.Length > 0)
               {
                   using (var stream = new FileStream(Path.Combine( 路徑 , 檔名), FileMode.Append))
                   {
                       await file.CopyToAsync(stream);
                   }
               }
 
               return Json("OK");
 
           }
           catch (Exception ex)
           {
               //寫Log
 
               return Json(ex.ToString());
           }

測試 : ARC

參考來源 https://docs.microsoft.com/zh-tw/aspnet/core/mvc/models/file-uploads?view=aspnetcore-2.1