如何在不重新打印的情况下更新终端中打印的消息 [英] How to update a printed message in terminal without reprinting

问题描述

我想为我的终端应用程序制作一个进度条，类似于:

I want to make a progress bar for my terminal application that would work something like:

 [XXXXXXX       ] 

这将给出在过程完成之前还剩下多少时间的视觉指示.

which would give a visual indication of how much time there is left before the process completes.

我知道我可以通过将它们添加到字符串然后简单的 printf 来打印越来越多的 X，但这看起来像:

I know I can do something like printing more and more X's by adding them to the string and then simply printf, but that would look like:

 [XXXXXXX       ] 
 [XXXXXXXX      ] 
 [XXXXXXXXX     ] 
 [XXXXXXXXXX    ] 

或类似的东西(显然您可以使用间距.)但这在视觉上并不美观.有没有办法在不重新打印的情况下用新文本更新终端中的打印文本?这都是在linux下，c++.

or something like that (obviously you can play with the spacing.) But this is not visually aesthetic. Is there a way to update the printed text in a terminal with new text without reprinting? This is all under linux, c++.

推荐答案

在打印新版本"时尝试使用 而不是 .

try using instead of when printing the new "version".

for(int i=0;i<=100;++i) printf("
[%3d%%]",i);
printf("
");

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