C# 释放内存的方法

如何释放内存：

 1 [DllImport("kernel32.dll", EntryPoint = "SetProcessWorkingSetSize")]
 2 public static extern int SetProcessWorkingSetSize(IntPtr process, int minSize, int maxSize);
 3 
 4 /// <summary>
 5 /// 释放内存
 6 /// </summary>
 7 public static void ClearMemory()
 8 {
 9      GC.Collect();
10      GC.WaitForPendingFinalizers();
11      if (Environment.OSVersion.Platform == PlatformID.Win32NT)
12      {
13          SetProcessWorkingSetSize(Process.GetCurrentProcess().Handle, -1, -1);
14      }
15 }

如何获取当前应用占用的内存大小：

 1 /// <summary>
 2 /// 释放内存
 3 /// </summary>
 4 public static void ClearMemory()
 5 {
 6      //获得当前工作进程
 7      Process proc = Process.GetCurrentProcess();
 8      long usedMemory = proc.PrivateMemorySize64;
 9      if (usedMemory > 1024 * 1024 * 20)
10      {
11          GC.Collect();
12          GC.WaitForPendingFinalizers();
13          if (Environment.OSVersion.Platform == PlatformID.Win32NT)
14          {
15              SetProcessWorkingSetSize(Process.GetCurrentProcess().Handle, -1, -1);
16          }
17      }
18 }