C++:执行 while 循环直到按下某个键，例如退出?

问题描述

有没有人有一段代码不使用 windows.h 来检查 while 循环中的按键.基本上是这段代码，但不必使用 windows.h 来做到这一点.我想在 Linux 和 Windows 上使用它.

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.

Your best bet is to create a custom "GetAsyncKeyState" function that will use #IFDEF for windows and linux to choose the appropriate GetAsyncKeyState() or equivalent.

>

没有其他方法可以达到预期的结果，cin 方法有其问题 - 例如应用程序必须处于焦点.

No other way exists to achieve the desired result, the cin approach has its problems - such as the application must be in focus.

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