//在linux下面实现检测按键（Linux中kbhit（）函数的实现）
#include <stdio.h>#include <termios.h>#include <term.h>#include <curses.h>#include <unistd.h>#include <stdlib.h>static struct termios initial_settings, new_settings;static int peek_character = -1;void init_keyboard();void close_keyboard();int kbhit();int readch();int main(){ int ch = 0; init_keyboard(); while(ch != 'q') { printf("looping\n"); sleep(1); if(kbhit()) { ch = readch(); printf("you hit %c\n",ch); } } close_keyboard(); exit(0); return 0;}void init_keyboard(){ tcgetattr(0,&initial_settings); new_settings = initial_settings; new_settings.c_lflag &= ~ICANON; new_settings.c_lflag &= ~ECHO; new_settings.c_lflag &= ~ISIG; new_settings.c_cc[VMIN] = 1; new_settings.c_cc[VTIME] = 0; tcsetattr(0, TCSANOW, &new_settings);}void close_keyboard(){ tcsetattr(0, TCSANOW, &initial_settings);}int kbhit(){ char ch; int nread; if(peek_character != -1) return 1; new_settings.c_cc[VMIN]=0; tcsetattr(0, TCSANOW, &new_settings); nread = read(0,&ch,1); new_settings.c_cc[VMIN]=1; tcsetattr(0, TCSANOW, &new_settings);if(nread == 1) { peek_character = ch; return 1;}return 0;}int readch(){ char ch; if(peek_character != -1) { ch = peek_character; peek_character = -1; return ch; } read(0,&ch,1); return ch;}
//方法二，比较好用
//用非阻塞io
#include <stdio.h>
#include <termios.h>
#include <unistd.h>
#include <fcntl.h>
int kbhit(void)
{
struct termios oldt, newt;
int ch;
int oldf;
tcgetattr(STDIN_FILENO, &oldt);
newt = oldt;
newt.c_lflag &= ~(ICANON | ECHO);
tcsetattr(STDIN_FILENO, TCSANOW, &newt);
oldf = fcntl(STDIN_FILENO, F_GETFL, 0);
fcntl(STDIN_FILENO, F_SETFL, oldf | O_NONBLOCK);
ch = getchar();
tcsetattr(STDIN_FILENO, TCSANOW, &oldt);
fcntl(STDIN_FILENO, F_SETFL, oldf);
if(ch != EOF)
{
ungetc(ch, stdin);
return 1;
}
return 0;
}
int main(void)
{
while(!kbhit())
puts("Press a key!");
printf("You pressed '%c'!/n", getchar());
return 0;
}
http://hi.baidu.com/wisonwu123/blog/item/a83a664230c80307cefca3ed.html
http://hi.baidu.com/weihuili5/blog/item/3c9d1a012a84a30d738da527.html