當我們聽到電腦上出現美妙的旋律的時候，是不是發現這是一個很偉大的開發，這就是C語言中函數Beep，下面武林技術頻道小編就給大家介紹C++中發聲函數Beep用法。
下面是正文：
?其實啊，Windows API 就提供了一個這樣奇妙的發音函數，它就是Beep函數。Beep可以通過控制主板揚聲器的發聲頻率和節拍來演奏美妙的旋律，本文根據音樂簡譜來演奏幾首優美的歌曲，用以展現Beep的瘋狂魅力。
首先我們來Beep的函數原型：
BOOL Beep( DWORD dwFreq; DWORD dwDuration;);
參數說明：
?dwFreq 指定要發出的頻率(HZ)
?dwDuration 指定發音的時長，以毫秒為單位。
Beep的實際應用
?比如說我要發do這個音，do應該是523hz，且如果要發一拍的話，就相當于400毫秒。
?那這個函數就成了這樣：Beep(523,400);
?但是，如果我們要連續的發出多個音的話，比如說像這樣：
Beep(523,400);//do Beep(578,400);//re Beep(659,400);//mi
?那豈不是太麻煩了，所以，我建議大家用define函數宏定義一下這些音，比如說這樣：#define re 578和#define mi 659，這樣，上面的三行語句就簡化了成這樣：
Beep(do,400);Beep(re,400);Beep(mi,400);
最終，給親們送上一份表（借別人的 劃去)
其中，q前綴為低音，1后綴為高音，s前綴為半音階
#define qdo 262 #define qre 294#define qmi 330#define qfa 349#define qso 392#define qla 440#define qsi 494#define do 523#define re 578#define mi 659#define fa 698#define so 784#define la 880#define si 988#define do1 1046#define re1 1175#define mi1 1318#define fa1 1480#define so1 1568#define la1 1760#define si1 1976#define sqdo 277#define sqre 311#define sqfa 370#define sqso 415#define sqla 466#define sdo 554#define sre 622#define sfa 740#define sso 831#define sla 932#define sdo1 1046#define sre1 1245#define sfa1 1480#define sso1 1661#define sla1 1865
最后，（嘿，同志們，別跑，后面還有彩蛋呢?。?/p>
好吧，是一首用Beep函數演奏的天空之城
#include <cstdio>#include <windows.h>#define qdo 262 #define qre 294#define qmi 330 //q前綴為低音，1后綴為高音，s前綴為半音階 #define qfa 349#define qso 392#define qla 440#define qsi 494#define do 523#define re 578#define mi 659#define fa 698#define so 784#define la 880#define si 988#define do1 1046#define re1 1175#define mi1 1318#define fa1 1480#define so1 1568#define la1 1760#define si1 1976#define sqdo 277#define sqre 311#define sqfa 370#define sqso 415#define sqla 466#define sdo 554#define sre 622#define sfa 740#define sso 831#define sla 932#define sdo1 1046#define sre1 1245#define sfa1 1480#define sso1 1661#define sla1 1865int main(){int pai=400,ban=200;int ting=128;Sleep(1000);Beep(la,ban);Beep(si,ban);Sleep(ting);Beep(do1,pai+ban);Beep(si,ban);Sleep(ting);Beep(do1,pai);Sleep(ting);Beep(mi1,pai);Sleep(ting);Beep(si,3*pai);Sleep(ting);Beep(mi,ban);Beep(mi,ban);Beep(la,ban+pai);Beep(so,ban);Sleep(ting);Beep(la,pai);Sleep(ting);Beep(do1,pai);Sleep(ting);Beep(so,2*pai);Sleep(ting);Sleep(pai);Beep(mi,ban);Sleep(ting/2);Beep(mi,ban);Sleep(ting/2);Beep(fa,pai+ban);Beep(mi,ban);Sleep(ting);Beep(fa,ban);Beep(do1,ban+pai);Sleep(ting);Beep(mi,2*pai);Sleep(ting);Sleep(ban);Beep(do1,ban);Sleep(ting/2);Beep(do1,ban);Sleep(ting/2);Beep(do1,ban);Sleep(ting/2);Beep(si,ban+pai);Beep(sfa,ban);Sleep(ting);Beep(sfa,pai);Beep(si,pai);Sleep(ting);Beep(si,2*pai);Sleep(ting);Sleep(pai);Beep(la,ban);Beep(si,ban);Sleep(ting);Beep(do1,pai+ban);Beep(si,ban);Sleep(ting);Beep(do1,pai);Sleep(ting);Beep(mi1,pai);Sleep(ting);Beep(si,2*pai);Sleep(ting);Sleep(pai);Beep(mi,ban);Sleep(20);Beep(mi,ban);Sleep(ting);Beep(la,pai+ban);Beep(so,ban);Sleep(ting);Beep(la,pai);Sleep(ting);Beep(do1,pai);Sleep(ting);Beep(so,3*pai);Sleep(ting+ban);Beep(mi,ban);Sleep(ting/2);Beep(fa,pai);Sleep(ting);Beep(do1,ban);Beep(si,ban);Sleep(20);Beep(si,pai);Sleep(ting);Beep(do1,pai);Sleep(ting);Beep(re1,ban);Sleep(20);Beep(re1,ban);Sleep(20);Beep(mi1,ban);Sleep(ting/2);Beep(do1,pai);Sleep(ting+pai);Beep(do1,pai);Beep(si,ban);Sleep(ting);Beep(la,ban);Sleep(20);Beep(la,ban);Sleep(ting);Beep(si,pai);Sleep(ting);Beep(sso,pai);Sleep(ting);Beep(sso,2*pai);Sleep(ting+pai);Beep(do1,ban);Beep(re1,ban);Sleep(ting);Beep(mi1,pai+ban);Beep(re1,ban);Sleep(ting);Beep(mi1,pai);Sleep(ting);Beep(fa1,pai);Sleep(ting);Beep(re1,2*pai);Sleep(pai+ting);Beep(so,ban);Sleep(20);Beep(so,ban);Sleep(ting);Beep(do1,ban);Beep(si,ban);Sleep(ting);Beep(do1,pai);Sleep(ting);Beep(mi1,pai);Sleep(ting);Beep(mi1,2*pai);Sleep(ting+2*pai);Beep(la,ban);Beep(si,ban);Sleep(ting);Beep(do1,pai);Sleep(ting);Beep(si,pai);Sleep(ting);Beep(re1,ban);Sleep(20);Beep(re1,ban);Sleep(ting);Beep(do1,pai+ban);Beep(so,ban);Sleep(20);Beep(so,pai);Sleep(pai+ting);Beep(fa1,pai);Sleep(ting);Beep(mi1,pai);Sleep(ting);Beep(re1,pai);Sleep(ting);Beep(do1,pai);Sleep(ting);Beep(mi1,4*pai);Beep(mi1,pai*2);Sleep(pai+ting);Beep(mi1,pai);Sleep(ting);Beep(la1,2*pai);Sleep(ting);Beep(so1,pai);Sleep(ting);Beep(so1,pai);Sleep(ting);Beep(mi1,ban);Sleep(ting/2);Beep(re1,ban);Sleep(ting);Beep(do1,pai);Sleep(ting+ban);Beep(do1,ban);Sleep(ting);Beep(re1,pai);Sleep(ting);Beep(do1,ban);Beep(re1,ban);Sleep(20);Beep(re1,ban);Sleep(ting);Beep(so1,pai);Sleep(ting);Beep(mi1,2*pai);Sleep(ting+pai);Beep(mi,pai);Sleep(ting);Beep(la1,2*pai);Sleep(ting);Beep(so1,2*pai);Sleep(ting);Beep(mi1,ban);Beep(re1,ban);Sleep(ting);Beep(do1,2*pai);Sleep(ting+ban);Beep(do1,ban);Sleep(ting);Beep(re1,pai);Sleep(ting);Beep(do1,ban);Beep(re1,ban);Sleep(20);Beep(re1,ban);Sleep(ting);Beep(si,pai);Sleep(ting);Beep(la,2*pai);Sleep(ting);Beep(la,ban);Beep(si,ban);Beep(do1,pai+ban);Beep(si,ban);Sleep(ting);Beep(do1,pai);Sleep(ting);Beep(mi1,pai);Sleep(ting);Beep(si,3*pai);Sleep(ting);Beep(mi,ban);Beep(mi,ban);Beep(la,ban+pai);Beep(so,ban);Sleep(ting);Beep(la,pai);Sleep(ting);Beep(do1,pai);Sleep(ting);Beep(so,2*pai);Sleep(ting);Sleep(pai);Beep(mi,ban);Sleep(ting/2);Beep(mi,ban);Sleep(ting/2);Beep(fa,pai+ban);Beep(mi,ban);Sleep(ting);Beep(fa,ban);Beep(do1,ban+pai);Sleep(ting);Beep(mi,2*pai);Sleep(ting);Sleep(ban);Beep(do1,ban);Sleep(ting/2);Beep(do1,ban);Sleep(ting/2);Beep(do1,ban);Sleep(ting/2);Beep(si,ban+pai);Beep(sfa,ban);Sleep(ting);Beep(sfa,pai);Beep(si,pai);Sleep(ting);Beep(si,2*pai);Sleep(ting);Sleep(pai);Beep(la,ban);Beep(si,ban);Sleep(ting);Beep(do1,pai+ban);Beep(si,ban);Sleep(ting);Beep(do1,pai);Sleep(ting);Beep(mi1,pai);Sleep(ting);Beep(si,2*pai);Sleep(ting);Sleep(pai);Beep(mi,ban);Sleep(20);Beep(mi,ban);Sleep(ting);Beep(la,pai+ban);Beep(so,ban);Sleep(ting);Beep(la,pai);Sleep(ting);Beep(do1,pai);Sleep(ting);Beep(so,3*pai);Sleep(ting+ban);Beep(mi,ban);Sleep(ting/2);Beep(fa,pai);Sleep(ting);Beep(do1,ban);Beep(si,ban);Sleep(20);Beep(si,pai);Sleep(ting);Beep(do1,pai);Sleep(ting);Beep(re1,ban);Sleep(20);Beep(re1,ban);Sleep(20);Beep(mi1,ban);Sleep(ting/2);Beep(do1,pai);Sleep(ting+pai);Beep(la,4*pai);Sleep(1000);main();}看了武林技術頻道小編為大家整理的內容后，相信大家對C++中發聲函數Beep用法已經完全明白了，我們會繼續為大家提供更多知識。新聞熱點
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