[STAThread]
private static void Main()
{
if (Process.GetProcessesByName(Process.GetCurrentProcess().ProcessName).Length > 1)
{
Environment.Exit(1);
}
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form2());
}标签：Process,Run,C#,Application,单例,Main From： https://www.cnblogs.com/guangzhiruijie/p/17158556.html