/// <summary>
/// 應(yīng)用程序的主入口點。
/// </summary>
[STAThread]
static void Main()
{
  System.Diagnostics.Process[] ps = System.Diagnostics.Process.GetProcessesByName(System.Diagnostics.Process.GetCurrentProcess().ProcessName);
  if (ps.Length <= 1)
  {
    Application.EnableVisualStyles();
    Application.SetCompatibleTextRenderingDefault(false);
    Application.Run(new MainForm());
  }
  else
  {
    return;
  }
}