C++监听键盘事件（读取键盘输入）

当我们想要用键盘来控制机器人的时候，就需要实时读取键盘输入。

例程程序如下：

#include <termio.h>
#include <stdio.h>

int scanKeyboard()
{

    int in;

    struct termios new_settings;
    struct termios stored_settings;
    //设置终端参数
    tcgetattr(0,&stored_settings);
    new_settings = stored_settings;
    new_settings.c_lflag &= (~ICANON);
    new_settings.c_cc[VTIME] = 0;
    tcgetattr(0,&stored_settings);
    new_settings.c_cc[VMIN] = 1;
    tcsetattr(0,TCSANOW,&new_settings);
    in = getchar();
    tcsetattr(0,TCSANOW,&stored_settings);

    return in;

}

//测试函数
int main(){

    while(1){
        printf("%d\n",scanKeyboard());
    }
}