如何修改前一行控制台文本? [英] How to modify the previous line of console text?

问题描述

我想实现这样的目标:

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

我显示了 3 行文本，每一行都与一个迟早会结束的线程相关.但是如果第二个比第三个晚完成，我会得到这样的结果:

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.我知道如何回到当前行，但是有没有办法向上走?我发誓我在某处见过它，虽然它可能是一个 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 :)

算了.请参阅远程文件管理器！它适用于 Windows 控制台，甚至适用于 PowerShell！如何制作这样的东西?最酷的部分是退出后恢复控制台状态.所以也许我应该问 - 如何直接访问控制台缓冲区?我想我需要一些本机代码来实现这一点，但也许还有另一种方法?我想在每次更新时清除控制台，但这似乎有点矫枉过正.或者也许不是?会闪烁吗?

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意位置: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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