是發聲函式，執行後透過主機板喇叭唱出旋律，可以試試下面：

TC 試：

#include

#include

#include

/* this founction plays sound until hit any key */

void mysound()

{

long freq ;

while(!kbhit()){/* while no keyboard hit, play sound */

for(freq=200L;freq

sound(freq);/*play freq sound*/

delay(200);/*delay 200ms*/

}

}

nosound();/* stop playing */

}

void main()

{

mysound() ;

}

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VC++ 試：

#include

#include

#include

main()

{

Beep(523,500);

Beep(587,500);

Beep(659,500);

Beep(698,500);

Beep(784,500);

Sleep(500);

Beep(523,500);

Beep(587,500);

Beep(659,500);

Beep(698,500);

Beep(784,500);

}

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wintc 試驗上兩個。