C/C++ Linux 键盘检测

  C/C++ 在 Linux 中没有现成的键盘检测函数，可以利用 中的 struct termios 结构体来构造键盘检测函数。至于 struct termios 的具体解析，这里不展开介绍，下面给出构造的键盘检测代码。

#include 
#include  
int scanKeyboard()
{
    int in;
    struct termios new_settings;
    struct termios stored_settings;
    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;
}

int main()
{
    while(1)
    {
        int ascii = scanKeyboard();
        printf(":%dn",ascii);
        if(ascii==27) break;
    }
    return 0;
}