如何修改控制台文本的上一行？ [英] How to modify the previous line of console text?

问题描述

我想要达到这样的效果：

I'd like to achieve something like this:

Time consuming operation...OK
Another time consuming operation...
And another one, but it completed, so...OK

我显示了3行文本，每一个与一个线程相关，可以结束早晚。但如果第二个完成晚于第三个，我会得到这样的：

I displayed 3 line of text, each one related with a thread which can end sooner or later. But if the second one complete later than the third one, I'll get something like this:

Time consuming operation...OK
Another time consuming operation...
And another one, but it completed, so...OKOK

这当然是不可接受的。我知道如何回到现在的线路，但有没有办法走？我会发现我已经看到它在某个地方，虽然它可以是一个Linux控制台：）

Which is of course unacceptable. I know how to go back in current line, but is there a way to go UP? I'd swear I've seen it somewhere, though it could be a Linux console :)

忘记它。请参阅远程文件管理器！它在Windows控制台中工作，它甚至在PowerShell中工作！如何做这样的东西？最酷的部分是退出后还原控制台状态。所以也许我应该问 - 如何直接访问控制台缓冲区？我认为我需要一些本地代码来做这个伎俩，但也许还有另一种方式？我想到每次更新清除控制台，但这似乎似乎杀人。或者也许不是？

Forget it. See Far File Manager! It works in Windows console, it works even in PowerShell! How to make something like this? And the coolest part is it restores console state after exiting. So maybe I should ask - how to access console buffer directly? I assume I'll need some native code to do the trick, but maybe there's another way? I thought of clearing console with each update, but this seems like overkill. Or maybe it isn't? Will it blink?

推荐答案

您可以将光标移动到任何位置： Console.SetCursorPosition 或使用 Console.CursorTop 。

You can move cursor wherever you want: Console.SetCursorPosition or use Console.CursorTop.

Console.SetCursorPosition(0, Console.CursorTop -1);
Console.WriteLine("Over previous line!!!");

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