c++ Beep（发声函数）
Windows API 提供了一个奇妙的发音函数-Beep函数。Beep可以通过控制主板扬声器的发声频率和节拍来演奏美妙的旋律
Beep函数原型
BOOL Beep(
DWORD dwFreq;
DWORD dwDuration;
);
dwFreq 指定要发出的频率(HZ)
dwDuration 指定发音的时长，以毫秒为单位。
比如说要发do这个音，do应该是523hz，且如果要发一拍的话，就相当于400毫秒。
那这个函数就成了这样：Beep(523,400);
然后连起来就可以弹出一首曲子
#include <cstdio>
#include <windows.h>
#define qdo 262
#define qre 294
#define qmi 330 //q前缀为低音，1后缀为高音，s前缀为半音阶
#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
int 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();
}