... WriteLine() 40 . { 41 . Text = new InArgument<string>(e => "Sound bell: " + counter.Get(e).ToString()) 42 . }, 43 . 44 . // Assign activity 45 . // Update counter 46 . new Assign<int>() 47 . ... Assign<int>() 47 . { 48 . Value = new InArgument<int>(e => counter.Get(e) + 1), 49 . To = new OutArgument<int>(counter) 50. },51. 52. // Delay activity53. new Delay() 54. {55. Duration ... 52. // Delay activity53. new Delay() 54. {55. Duration = new TimeSpan (0, 0,1)56. }}}}}57. };Window Workflow Fowdation 4. 0 ExpressionKhi định nghĩa các activities ở trên, chúng ta thấy rằng...