System.FormatException: Base-64 字元陣列或字串的無效長度。 於 System.Convert.FromBase64_Decode(Char* startInputPtr, Int32 inputLength, Byte* startDestPtr, Int32 destLength) 於 System.Convert.FromBase64CharPtr(Char* inputPtr, Int32 inputLength) 於 System.Convert.FromBase64String(String s) 於 UCO.Service.ImageUpLoadService.DecodeBase64(String value) 於 UCO.Service.ShowEpaperService.ShowEpaper(String urlRequest) 於 EPAPER.Controllers.ShowEpaperController.ShowEpaperIndex()