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34 lines
654 B
HTML
34 lines
654 B
HTML
<h1>输入输出 - getchar</h1>
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<p>原型：extern int getchar(void);</p>
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<p>用法：#include <ctype.h></p>
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<p>功能：读键</p>
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<p>说明：从键盘上读取一个键，并返回该键的键值</p>
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getch是到getchar的宏定义
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举例：<pre>
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// getchar.c
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#include <stdio.h>
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main()
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{
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int c;
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clrscr();
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printf("Press key...");
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while((c=getchar())!='Q')
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{
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clrscr();
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printf("key: %c\nvalue: %x",c,c);
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}
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}
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</pre>相关函数：<font color=gray>getkey</font>,<a href="kbhit.html">kbhit</a>
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