c# - 在 Debug模式下给定 ctrl + c 时，控制台应用程序不会退出

Question

当我在 Release 中运行以下命令时，按 CTRL + C 成功终止应用程序。

在 Debug 中运行时，按 CTRL + C 会在下面的 while 循环中挂起。

为什么？有解决办法吗？

static void Main(string[] args)
{
    while (true)
    {
        // Press CTRL + C...
        // When running in Release, the app closes down
        // When running in Debug, it hangs in here
    }
}

Answer 1

实现此目的的一种方法是使用 Console.CancelKeyPress

Occurs when the Control modifier key (Ctrl) and either the ConsoleKey.C console key (C) or the Break key are pressed simultaneously (Ctrl+C or Ctrl+Break).

When the user presses either Ctrl+C or Ctrl+Break, the CancelKeyPress event is fired and the application's ConsoleCancelEventHandler event handler is executed. The event handler is passed a ConsoleCancelEventArgs object

---

示例

private static bool keepRunning = true;

public static void Main(string[] args)
{
   Console.CancelKeyPress += delegate(object sender, ConsoleCancelEventArgs e) {
         e.Cancel = true;
         keepRunning = false;
      };

   while (keepRunning) 
   {
      // Do stuff
   }
   Console.WriteLine("exited gracefully");
}