C# winform Mutex控制程序以单实例运行

 1         static void Main()
 2         {
 3             using (Mutex mutex = new Mutex(false, "TestFlag_" + Application.StartupPath.GetHashCode())) {
 4                 Application.EnableVisualStyles();
 5                 Application.SetCompatibleTextRenderingDefault(false);
 6                 if (!mutex.WaitOne(0, false))
 7                 {
 8                     MessageBox.Show("另一个实例正在运行");
 9                     return;
10                 }
11                 Application.Run(new Form1());
12             }
13         }