c# 기초구문 업데이트 완료

ExS.Delegate3/Program.cs

@@ -0,0 +1,43 @@
+using static MyClass;
+
+internal class Program
+{
+    private static void Main(string[] args)
+    {
+        MyClass cls = new();
+        cls.OnFinished += new OnFinishedEventHandler(Cls_OnFinished);
+        cls.OnFinished += Cls_OnFinished;
+
+        //Annonymous Method 사용
+        cls.OnFinished2 += delegate (object? sender, EventArgs eventArgs)
+        {
+            Console.WriteLine("Finished");
+        };
+
+        //Lambda 식 사용, 무명메서드를 대신할 수 있다.
+        //(입력 파라미터) => { 실행문장 블럭 };
+        cls.OnFinished += (sender, eventArgs) => { Console.WriteLine("Finished"); };
+
+    }
+
+    private static void Cls_OnFinished(object? sender, EventArgs eventArgs)
+    {
+        Console.WriteLine("Finished");
+    }
+}
+
+class MyClass
+{
+    //EventHandler를 delegate로 구현
+    public delegate void OnFinishedEventHandler(object? sender, EventArgs eventArgs);
+    public event OnFinishedEventHandler? OnFinished;
+
+    public EventHandler<EventArgs>? OnFinished2;
+
+    public void Run(int complexity)
+    {
+        Thread.Sleep(complexity);
+        OnFinished?.Invoke(this, EventArgs.Empty);
+        OnFinished2?.Invoke(this, EventArgs.Empty);
+    }
+}