1. delegate

// 委托public delegate int AddMethod(int a, int b);// 实现var obj = new TestObject();var objType = obj.GetType();var add = objType.GetMethod("Add");var d = (AddMethod)Delegate.CreateDelegate(typeof(AddMethod), obj, add);for (var i = 0; i < _TIMES; i++) d(a, b);

2. func

var d = (Func
     
      )Delegate.CreateDelegate(typeof(Func
      
       ), add);
      
     

3. reflection

var obj = new TestObject(); var add = obj.GetType().GetMethod("Add");  for (var i = 0; i < _TIMES; i++) add.Invoke(obj, new object[] {a, b});

4. Test

 

private static double _Run(string description, Action
     
       action, int a, int b){if (action == null) throw new ArgumentNullException("action");// 启动计时器var stopwatch = Stopwatch.StartNew();// 运行要测量的代码action(a, b);// 终止计时stopwatch.Stop();// 输出结果Console.WriteLine("{0}: {1}", description, stopwatch.Elapsed.TotalMilliseconds.ToString(CultureInfo.InvariantCulture));// 返回执行时间return stopwatch.Elapsed.TotalMilliseconds;}