/* Emits a 7-Hz tone for 10 seconds. True story: 7 Hz is the resonant frequency of a chicken's skull cavity. This was determined empirically in Australia, where a new factory generating 7-Hz tones was located too close to a chicken ranch: When the factory started up, all the chickens died. Your PC may not be able to emit a 7-Hz tone. */ int main(void) { sound(7); delay(10000); nosound(); }
by: 发表于:2017-08-24 17:39:53 顶(0) | 踩(0) 回复
??
回复评论