static void Main(string[] args) { string sourcePath = Path.Combine(Environment.CurrentDirectory, "images"); string destinationPath = Path.Combine(Environment.CurrentDirectory, "output"); ImageProcess imageProcess = new ImageProcess(); ImageProcessAsync imageProcessAsync = new ImageProcessAsync(); //先清除原本資料夾得內容 imageProcess.Clean(destinationPath); Stopwatch sw = new Stopwatch(); sw.Start(); imageProcess.ResizeImages(sourcePath, destinationPath, 2.0); sw.Stop(); var timeSync = sw.ElapsedMilliseconds; Console.WriteLine($"同步版時間: {sw.ElapsedMilliseconds} ms"); sw.Reset(); imageProcessAsync.Clean(destinationPath); sw.Start(); imageProcessAsync.ResizeImages(sourcePath, destinationPath, 2.0).Wait(); sw.Stop(); var timeAsync = sw.ElapsedMilliseconds; Console.WriteLine($"非同步版時間: {sw.ElapsedMilliseconds} ms"); var comparison = ((double)(timeSync - timeAsync) / timeSync) * 100; Console.WriteLine($"節省: {comparison:N2} % 時間"); Console.ReadLine(); }