blocks|key|1197641|text|尝试此conio.h文件：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1197642|#include+<termios.h>
#include+<unistd.h>
#include+<stdio.h>

/*+reads+from+keypress,+doesn't+echo+*/
int+getch(void)
{
++++struct+termios+oldattr,+newattr;
++++int+ch;
++++tcgetattr(+STDIN_FILENO,+&oldattr+);
++++newattr+=+oldattr;
++++newattr.c_lflag+&=+~(+ICANON+%7C+ECHO+);
++++tcsetattr(+STDIN_FILENO,+TCSANOW,+&newattr+);
++++ch+=+getchar();
++++tcsetattr(+STDIN_FILENO,+TCSANOW,+&oldattr+);
++++return+ch;
}

/*+reads+from+keypress,+echoes+*/
int+getche(void)
{
++++struct+termios+oldattr,+newattr;
++++int+ch;
++++tcgetattr(+STDIN_FILENO,+&oldattr+);
++++newattr+=+oldattr;
++++newattr.c_lflag+&=+~(+ICANON+);
++++tcsetattr(+STDIN_FILENO,+TCSANOW,+&newattr+);
++++ch+=+getchar();
++++tcsetattr(+STDIN_FILENO,+TCSANOW,+&oldattr+);
++++return+ch;
}|code-block|syntax|javascript|1197643|您还可以使用gcc中的ncurses库来实现一些类似于conio.h的功能。|1197644|entityMap|0|LINK|mutability|MUTABLE|url|https://en.wikipedia.org/wiki/Ncurses^0|3|7|0|0|R|7|B|7|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@$9|11|A|12|1|13]]|E|$]]|$1|M|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]]]

Try this <code>conio.h</code> file:

<pre><code>#include &lt;termios.h&gt;
#include &lt;unistd.h&gt;
#include &lt;stdio.h&gt;

/* reads from keypress, doesn't echo */
int getch(void)
{
 struct termios oldattr, newattr;
 int ch;
 tcgetattr( STDIN_FILENO, &amp;oldattr );
 newattr = oldattr;
 newattr.c_lflag &amp;= ~( ICANON | ECHO );
 tcsetattr( STDIN_FILENO, TCSANOW, &amp;newattr );
 ch = getchar();
 tcsetattr( STDIN_FILENO, TCSANOW, &amp;oldattr );
 return ch;
}

/* reads from keypress, echoes */
int getche(void)
{
 struct termios oldattr, newattr;
 int ch;
 tcgetattr( STDIN_FILENO, &amp;oldattr );
 newattr = oldattr;
 newattr.c_lflag &amp;= ~( ICANON );
 tcsetattr( STDIN_FILENO, TCSANOW, &amp;newattr );
 ch = getchar();
 tcsetattr( STDIN_FILENO, TCSANOW, &amp;oldattr );
 return ch;
}
</code></pre>

You can also use the <a href="https://en.wikipedia.org/wiki/Ncurses" rel="noreferrer">ncurses</a> library in gcc for some functions similar to <code>conio.h</code>.

blocks|key|1197559|text|如果回显到屏幕不是问题，您可以尝试使用stdio.h中的getchar()。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1197560|entityMap^0|J|7|S|9|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

If echoing to the screen is not a problem, you could try using <code>getchar()</code> from <code>stdio.h</code>.

blocks|key|982969|text|看看咒语吧：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|982970|http://en.wikipedia.org/wiki/Curses_%2528programming_library%2529|offset|length|982971|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/Curses_%2528programming_library%2529^0|0|0|1P|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

Check out curses:

<a href="http://en.wikipedia.org/wiki/Curses_%28programming_library%29" rel="noreferrer">http://en.wikipedia.org/wiki/Curses_%28programming_library%29</a>

blocks|key|982979|text|curses+library中似乎包含了getch()。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|982980|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/Curses_%2528programming_library%2529|1|http://www.mkssoftware.com/docs/man3/curs_getch.3.asp^0|K|7|0|E|0|K|7|1|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]]|D|@$9|S|A|T|1|U]|$9|V|A|W|1|X]]|E|$]]|$1|F|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]|N|$5|I|J|K|E|$L|O]]]]

<code><a href="http://www.mkssoftware.com/docs/man3/curs_getch.3.asp" rel="nofollow noreferrer">getch()</a></code> seems to be included in <a href="http://en.wikipedia.org/wiki/Curses_%28programming_library%29" rel="nofollow noreferrer">curses library</a>.

blocks|key|983163|text|根据这些解决方案code，您必须手动使用getch()和getche()函数的开源代码，如下所述。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|983164|#include+<termios.h>
#include+<stdio.h>

static+struct+termios+old,+new;

/*+Initialize+new+terminal+i/o+settings+*/
void+initTermios(int+echo)+
{
++tcgetattr(0,+&old);+/*+grab+old+terminal+i/o+settings+*/
++new+=+old;+/*+make+new+settings+same+as+old+settings+*/
++new.c_lflag+&=+~ICANON;+/*+disable+buffered+i/o+*/
++new.c_lflag+&=+echo+?+ECHO+:+~ECHO;+/*+set+echo+mode+*/
++tcsetattr(0,+TCSANOW,+&new);+/*+use+these+new+terminal+i/o+settings+now+*/
}

/*+Restore+old+terminal+i/o+settings+*/
void+resetTermios(void)+
{
++tcsetattr(0,+TCSANOW,+&old);
}

/*+Read+1+character+-+echo+defines+echo+mode+*/
char+getch_(int+echo)+
{
++char+ch;
++initTermios(echo);
++ch+=+getchar();
++resetTermios();
++return+ch;
}

/*+Read+1+character+without+echo+*/
char+getch(void)+
{
++return+getch_(0);
}

/*+Read+1+character+with+echo+*/
char+getche(void)+
{
++return+getch_(1);
}|code-block|syntax|javascript|983165|只需将其放在代码的main方法之前|983166|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/7469139/what-is-equivalent-to-getch-getche-in-linux^0|8|4|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|C|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

According to these solution <a href="https://stackoverflow.com/questions/7469139/what-is-equivalent-to-getch-getche-in-linux">code</a> you must manually use open source code for getch() and getche() function as described the code is as following .

<pre><code>#include &lt;termios.h&gt;
#include &lt;stdio.h&gt;

static struct termios old, new;

/* Initialize new terminal i/o settings */
void initTermios(int echo) 
{
 tcgetattr(0, &amp;old); /* grab old terminal i/o settings */
 new = old; /* make new settings same as old settings */
 new.c_lflag &amp;= ~ICANON; /* disable buffered i/o */
 new.c_lflag &amp;= echo ? ECHO : ~ECHO; /* set echo mode */
 tcsetattr(0, TCSANOW, &amp;new); /* use these new terminal i/o settings now */
}

/* Restore old terminal i/o settings */
void resetTermios(void) 
{
 tcsetattr(0, TCSANOW, &amp;old);
}

/* Read 1 character - echo defines echo mode */
char getch_(int echo) 
{
 char ch;
 initTermios(echo);
 ch = getchar();
 resetTermios();
 return ch;
}

/* Read 1 character without echo */
char getch(void) 
{
 return getch_(0);
}

/* Read 1 character with echo */
char getche(void) 
{
 return getch_(1);
}
</code></pre>

Just put it before your main method of code

blocks|key|983316|text|您可以使用libcaca中的getch()等效项|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|983317|__extern+int+caca_conio_getch+(void)|code-block|syntax|javascript|983318|entityMap|0|LINK|mutability|MUTABLE|url|http://caca.zoy.org/^0|E|7|5|7|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@$9|V|A|W|1|X]]|E|$]]|$1|F|3|G|5|H|7|Y|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|L|$M|$5|N|O|P|E|$Q|R]]]]

You can use <code>getch()</code> equivalent from <a href="http://caca.zoy.org/" rel="nofollow noreferrer">libcaca</a>:

<pre><code>__extern int caca_conio_getch (void)
</code></pre>

blocks|key|1197870|text|如果，由于任何原因，你不能使用诅咒，试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1197871|#+include+<stdio.h>
#+include+<stdlib.h>
#+include+<string.h>
#+include+<ctype.h>
#+include+<termios.h>

/*+get+a+single+char+from+stdin++++*/
int+getch(void)
{
+++struct+termios+oldattr,+newattr;
+++int+ch;
+++tcgetattr(0,+&oldattr);
+++newattr=oldattr;
+++newattr.c_lflag+&=+~(+ICANON+%7C+ECHO+);
+++tcsetattr(+0,+TCSANOW,+&newattr);
+++ch=getchar();
+++tcsetattr(0,+TCSANOW,+&oldattr);
+++return(ch);
}|code-block|syntax|javascript|1197872|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If, for any reasons, you can't use curses, try this:

<pre><code># include &lt;stdio.h&gt;
# include &lt;stdlib.h&gt;
# include &lt;string.h&gt;
# include &lt;ctype.h&gt;
# include &lt;termios.h&gt;

/* get a single char from stdin */
int getch(void)
{
 struct termios oldattr, newattr;
 int ch;
 tcgetattr(0, &amp;oldattr);
 newattr=oldattr;
 newattr.c_lflag &amp;= ~( ICANON | ECHO );
 tcsetattr( 0, TCSANOW, &amp;newattr);
 ch=getchar();
 tcsetattr(0, TCSANOW, &amp;oldattr);
 return(ch);
}
</code></pre>

blocks|key|983091|text|在Unix中，getch()是ncurses库的一部分。但我为this+question编写了一个变通方法，它允许您使用类似getch的功能，而不会有其他的诅咒负担。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|983092|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/7410447/why-getch-returns-before-press-any-key^0|7|7|V|D|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]]|D|@$9|Q|A|R|1|S]]|E|$]]|$1|F|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]]]

In Unix, <code>getch()</code> is part of the ncurses library. But I wrote a workaround for <a href="https://stackoverflow.com/questions/7410447/why-getch-returns-before-press-any-key">this question</a> that lets you use getch-like functionality without the rest of the curses baggage.

blocks|key|1197732|text|conio.h只在Dos中，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1197733|对于linux，请使用|1197734|sudo+apt-get+install+libncurses-dev|code-block|syntax|javascript|1197735|然后|1197736|-lncurses|1197737|//在集成开发环境中，你必须链接它:例如:代码块，设置->编译器->链接器设置，添加'ncurses‘|1197738|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

conio.h is only in Dos, 

for linux, use 

<pre><code>sudo apt-get install libncurses-dev
</code></pre>

&amp; then 

<pre><code>-lncurses
</code></pre>

// In IDE, you have to link it:
for example: codeblocks, Setting -> Compiler -> Linker setting, and add 'ncurses'

blocks|key|983264|text|getch()在libcurses中。curses的使用稍微复杂一些，因为它与底层终端有很深的链接，并且必须进行初始化。在getchar()+returns+the+same+value+(27)+for+up+and+down+arrow+keys中提供了一个初始化libcurses的curses+getch()的工作示例|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|983265|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/15306463/getchar-returns-the-same-value-27-for-up-and-down-arrow-keys^0|0|7|8|9|47|7|1P|1S|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]|$9|Q|A|R|B|C]|$9|S|A|T|B|C]]|D|@$9|U|A|V|1|W]]|E|$]]|$1|F|3|-4|5|6|7|X|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]]]

<code>getch()</code> is in <code>libcurses</code>. the use of curses is a bit more complex because it has deep links to the underlying terminal and has to be initialized. a working example for curses <code>getch()</code> with initialization of libcurses is in <a href="https://stackoverflow.com/questions/15306463/getchar-returns-the-same-value-27-for-up-and-down-arrow-keys">getchar() returns the same value (27) for up and down arrow keys</a>

blocks|key|1197932|text|您还可以在linux中使用系统命令来控制终端，如下所示|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1197933|char+getch()++++{

++++++++char+c;

++++++++system("stty+raw+-echo");

++++++++c+=+getchar();

++++++++system("stty+-raw+echo");

++++++++return+c;

}|code-block|syntax|javascript|1197934|此函数不要求用户按enter键，并在不回显的情况下接受用户的输入它要求您将stdlib.h库添加到代码中|1197935|注意:此功能仅适用于基于UNIX的操作系统|1197936|如有任何改进或指出代码中的任何问题，将不胜感激|1197937|问候|1197938|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

You can also use system command to control the terminal in linux like this
<pre><code>char getch() {

 char c;

 system(&quot;stty raw -echo&quot;);

 c = getchar();

 system(&quot;stty -raw echo&quot;);

 return c;

}
</code></pre>
This function does not requires the user to press enter and takes input from the user without echoing It requires you to add stdlib.h library to your code
Note : This function is only applicable to UNIX-based OS
Any improvements or pointing out any issues in the code will be appreciated
Regards

In TurboC++, I can use the <code>getch()</code> function from <code>conio.h</code>. But in Linux, gcc doesn't provide <code>conio.h</code>. How can I get the functionality of <code>getch()</code>?

How to implement getch() function of C in Linux?

集成开发环境

编译器

Linux

Unix

在TurboC++中，我可以使用conio.h中的getch()函数。但是在Linux中，gcc并没有提供conio.h。如何获得getch()的功能

问如何在Linux下实现C的getch()函数？
EN

回答 11

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问如何在Linux下实现C的getch()函数？EN

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问如何在Linux下实现C的getch()函数？
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