C++:执行 while 循环直到按下某个键，例如退出?

Does anyone have a snippet of code that doesn't use windows.h to check for a key press within a while loop. Basically this code but without having to use windows.h to do it. I want to use it on Linux and Windows.

#include <windows.h>
#include <iostream>

int main()
{
    bool exit = false;

    while(exit == false)
    {
        if (GetAsyncKeyState(VK_ESCAPE))
        {
            exit = true;
        }
        std::cout<<"press esc to exit! "<<std::endl;
    }

    std::cout<<"exited: "<<std::endl;

    return 0;
}

推荐答案

最好的办法是创建一个自定义的GetAsyncKeyState"函数，该函数将使用 #IFDEF 为 windows 和 linux 选择合适的 GetAsyncKeyState() 或等效函数.