C#遞歸刪除進程及其子進程

/// <summary>
 /// 結束進程和相關的子進程
 /// </summary>
 /// <param name="pid">須要結束的進程ID</param>
 public static void KillProcessAndChildren(int pid)
 {
     ManagementObjectSearcher searcher = new ManagementObjectSearcher("Select * From Win32_Process Where ParentProcessID=" + pid);
     ManagementObjectCollection moc = searcher.Get();

try
     {
         Process proc = Process.GetProcessById(pid); Console.WriteLine(pid); proc.Kill(); }

foreach (ManagementObject mo in moc) { KillProcessAndChildren(Convert.ToInt32(mo["ProcessID"])); } catch (ArgumentException) { /* process already exited */ } }