1 class Program

 2     {

 3         static void Main(string[] args)

 4         {

 5             long lenth = 1024 * 1024 * 128;

 6

 7             GetCost("程序启动");

 8

 9             double[] data = new double[lenth];

10             for (int i = 0; i < lenth; i++)

11             {

12                 data[i] = double.MaxValue;

13             }

14             GetCost("数据制造完成");

15

16             data = null;

17             GetCost("data = null");

18

19             System.GC.Collect();

20             GetCost("System.GC.Collect()");

21

22             Console.ReadKey();

23         }

24

25         /// <summary>

26         /// 显示内存使用的状态

27         /// </summary>

28         /// <param name="state"></param>

29         static void GetCost(string state)

30         {

31             Console.Write("当前状态：" + state + ";  占用内存:");

32             using (var p1 = new PerformanceCounter("Process", "Working Set - Private", "GCtest.vshost"))

33             {

34                 Console.WriteLine( (p1.NextValue()/1024/1024).ToString("0.0")+"MB");

35             }

36         }

37     }