这是预期的行为。至少在Windows中， startDetached 等效于使用CreateProcess .com / es-es / library / windows / desktop / ms684863（v = vs.85）.aspx rel = nofollow noreferrer> DETACHED_PROCESS 标志，其中新进程不会继承其父级的控制台。在其他平台上，该方法也可以执行类似的操作。

It is the expected behavior. At least in Windows startDetached is equivalent to calling CreateProcess with the DETACHED_PROCESS flag, where the new process does not inherit its parent's console. It makes sense that in other platforms the method would do something similar.

在这种情况下，您必须使用 AllocConsole 上的新进程（请注意，您可能需要将流句柄重定向到新控制台），或尝试以其他方式启动该进程（检查 CreateProcess 或 叉子 ）。

In this case you'd had to manually allocate a new one using AllocConsole on the new process (be aware that you may need to redirect the streaming handles to the new console), or try to start the process in a different way (check CreateProcess or fork).

BTW，系统冻结应用程序的原因是因为它是一个同步调用，所以它在其他过程完成之前，不会返回控件。您可以尝试从单独的线程调用 system ，这样可以避免阻塞应用程序的主事件循环。

BTW, the reason system freezes your application is because it is a synchronous call, so it won't return the control until the other process finishes. You may try calling system from a separate thread and it this way you avoid blocking the main event loop of your application.