Question

我是C ++的新手，我正在编写这个程序，当我运行它时应该发出哔哔声。我到处搜索，我觉得我的代码是正确的，但我只是听不到哔哔声。（我的发言人也在谈论）请帮助！

#include<iostream>
using namespace std;

int main()
{
    //please beep
    cout << "\a";
    cout << "other text" << endl;
    return 0;
}

Answer 1

如果根据ASCII table编写'\a'（又称BEL字符）会产生声音，取决于特定的终端实现。

将该字符写入控制台并不能保证产生声音信号。有些终端可能响铃，有些终端可能会闪烁一秒钟，否则可能会完全忽略它。

嗯，从其他答案中可以看出，在应用声音信号之前，终端已关闭。

使用某种机制，在应用程序退出之前使用cin.get()等阻止操作可以帮助保持应用程序/终端保持足够长的打开状态。

Answer 2

这取决于终端。

类似的问题：

https://apple.stackexchange.com/questions/162632/terminal-not-beeping-on-bell-character

https://unix.stackexchange.com/questions/1974/how-do-i-make-my-pc-speaker-beep

make sounds (beep) with c++

最终，您的终端可以发出哔声。在不同环境中运行的相同代码可能表现不同。

Answer 3

除了标准C ++ cout << '\a'之外，在Windows上还有一个名为Beep()的函数。

编写

Beep()以将蜂鸣声传递给会话的默认声音设备。这通常是声卡，除非在终端服务下运行，在这种情况下，蜂鸣声在客户端上呈现。

用法：Beep( Frequency_Herz , Duration_Milliseconds );

https://msdn.microsoft.com/en-us/library/windows/desktop/ms679277(v=vs.85).aspx

超级马里奥兄弟主题和简介歌曲的C ++代码

#include <iostream>
#include <Windows.h>


int main(){

        Beep (330,100);Sleep(100);
        Beep (330,100);Sleep(300);
        Beep (330,100);Sleep(300);
        Beep (262,100);Sleep(100);
        Beep (330,100);Sleep(300);
        Beep (392,100);Sleep(700);
        Beep (196,100);Sleep(700);
        Beep (262,300);Sleep(300);
        Beep (196,300);Sleep(300);
        Beep (164,300);Sleep(300);
        Beep (220,300);Sleep(100);
        Beep (246,100);Sleep(300);
        Beep (233,200);
        Beep (220,100);Sleep(300);
        Beep (196,100);Sleep(150);
        Beep (330,100);Sleep(150);
        Beep (392,100);Sleep(150);
        Beep (440,100);Sleep(300);
        Beep (349,100);Sleep(100);
        Beep (392,100);Sleep(300);
        Beep (330,100);Sleep(300);
        Beep (262,100);Sleep(100);
        Beep (294,100);Sleep(100);
        Beep (247,100);Sleep(500);
        Beep (262,300);Sleep(300);
        Beep (196,300);Sleep(300);
        Beep (164,300);Sleep(300);
        Beep (220,300);Sleep(100);
        Beep (246,100);Sleep(300);
        Beep (233,200);
        Beep (220,100);Sleep(300);
        Beep (196,100);Sleep(150);
        Beep (330,100);Sleep(150);
        Beep (392,100);Sleep(150);
        Beep (440,100);Sleep(300);
        Beep (349,100);Sleep(100);
        Beep (392,100);Sleep(300);
        Beep (330,100);Sleep(300);
        Beep (262,100);Sleep(100);
        Beep (294,100);Sleep(100);
        Beep (247,100);Sleep(900);
        Beep (392,100);Sleep(100);
        Beep (370,100);Sleep(100);
        Beep (349,100);Sleep(100);
        Beep (311,100);Sleep(300);
        Beep (330,100);Sleep(300);
        Beep (207,100);Sleep(100);
        Beep (220,100);Sleep(100);
        Beep (262,100);Sleep(300);
        Beep (220,100);Sleep(100);
        Beep (262,100);Sleep(100);
        Beep (294,100);Sleep(500);
        Beep (392,100);Sleep(100);
        Beep (370,100);Sleep(100);
        Beep (349,100);Sleep(100);
        Beep (311,100);Sleep(300);
        Beep (330,100);Sleep(300);
        Beep (523,100);Sleep(300);
        Beep (523,100);Sleep(100);
        Beep (523,100);Sleep(1100);
        Beep (392,100);Sleep(100);
        Beep (370,100);Sleep(100);
        Beep (349,100);Sleep(100);
        Beep (311,100);Sleep(300);
        Beep (330,100);Sleep(300);
        Beep (207,100);Sleep(100);
        Beep (220,100);Sleep(100);
        Beep (262,100);Sleep(300);
        Beep (220,100);Sleep(100);
        Beep (262,100);Sleep(100);
        Beep (294,100);Sleep(500);
        Beep (311,300);Sleep(300);
        Beep (296,300);Sleep(300);
        Beep (262,300);Sleep(1300);
        Beep (262,100);Sleep(100);
        Beep (262,100);Sleep(300);
        Beep (262,100);Sleep(300);
        Beep (262,100);Sleep(100);
        Beep (294,100);Sleep(300);
        Beep (330,200);Sleep(50);
        Beep (262,200);Sleep(50);
        Beep (220,200);Sleep(50);
        Beep (196,100);Sleep(700);
        Beep (262,100);Sleep(100);
        Beep (262,100);Sleep(300);
        Beep (262,100);Sleep(300);
        Beep (262,100);Sleep(100);
        Beep (294,100);Sleep(100);
        Beep (330,100);Sleep(700);
        Beep (440,100);Sleep(300);
        Beep (392,100);Sleep(500);
        Beep (262,100);Sleep(100);
        Beep (262,100);Sleep(300);
        Beep (262,100);Sleep(300);
        Beep (262,100);Sleep(100);
        Beep (294,100);Sleep(300);
        Beep (330,200);Sleep(50);
        Beep (262,200);Sleep(50);
        Beep (220,200);Sleep(50);
        Beep (196,100);Sleep(700);
        /*Intro*/
        Beep (330,100);Sleep(100);
        Beep (330,100);Sleep(300);
        Beep (330,100);Sleep(300);
        Beep (262,100);Sleep(100);
        Beep (330,100);Sleep(300);
        Beep (392,100);Sleep(700);
        Beep (196,100);Sleep(700);
        Beep (196,100);Sleep(125);
        Beep (262,100);Sleep(125);
        Beep (330,100);Sleep(125);
        Beep (392,100);Sleep(125);
        Beep (523,100);Sleep(125);
        Beep (660,100);Sleep(125);
        Beep (784,100);Sleep(575);
        Beep (660,100);Sleep(575);
        Beep (207,100);Sleep(125);
        Beep (262,100);Sleep(125);
        Beep (311,100);Sleep(125);
        Beep (415,100);Sleep(125);
        Beep (523,100);Sleep(125);
        Beep (622,100);Sleep(125);
        Beep (830,100);Sleep(575);
        Beep (622,100);Sleep(575);
        Beep (233,100);Sleep(125);
        Beep (294,100);Sleep(125);
        Beep (349,100);Sleep(125);
        Beep (466,100);Sleep(125);
        Beep (587,100);Sleep(125);
        Beep (698,100);Sleep(125);
        Beep (932,100);Sleep(575);
        Beep (932,100);Sleep(125);
        Beep (932,100);Sleep(125);
        Beep (932,100);Sleep(125);
        Beep (1046,675);    


    return 0;
}

C ++没有哔哔

3 个答案: