c语言怎么监视键盘,C语言键盘按键无阻塞侦测:kbhit()

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转载最新推荐文章于 2023-11-12 15:45:15 发布 · 313 阅读

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这篇博客讨论了在Ubuntu系统中使用kbhit()函数时遇到的问题，该函数通常用于检测键盘是否被按下。由于`conio.h`头文件在Ubuntu中不可用，作者提供了多种解决方案，包括使用兼容包、curses库或ncurses开发包。解决方案包括从网上下载兼容的conio库，使用`curses.h`头文件，或通过`sudo apt-get install libncurses5-dev`命令安装ncurses库。

kbhit in c

kbhit in c: kbhit function is used to determine if a key has been pressed or not. To use kbhit function in your program you should include the header file "conio.h". If a key has been pressed then it returns a

non zero value otherwise returns zero.

Declaration : int kbhit();

C programming code for kbhit

#include

main()

{

while (!kbhit())

printf("You haven't pressed a key.");

return 0;

}

As long as in the above program user doesn't presses a key kbhit() return zero and (!0) i.e. 1 the condition in while loop is true and "You haven't pressed a key." will be printed again and again. As a key is pressed

from the keyboard the condition in while loop become false as now kbhit() will return a non-zero value and ( !(non-zero) = 0), so the control will come out of the while loop.

===========================

ubuntu上没有conio.h如何解决

www.MyException.Cn 发布于：2012-08-01 17:53:40 浏览：142次

本人用的ubuntu12.04版本，gcc是4.6.3版本，要下载什么样的conio.h和库文件？难道只能用ncurses替代吗

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来自百度百科:

conio 库不仅适用于 Window 平台，在 Linux 下也可使用.网上已经有兼容包,下载后打开就可使用;而至于Mac则完全跟Window没有区别,直接可以使用.

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自己没试过，希望对你有帮助，或者直接自己搜索关键字 "linux 使用 conio.h".

http://zhidao.baidu.com/question/241772898.html

http://tech.techweb.com.cn/thread-183749-1-1.html

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