excel函数怎么提醒生日快乐,N天后生日。答:=IF(AND(MONTH(B1)=MONTH(NOW()),DAY(B1)=DAY(NOW())),"祝"&A1&DATEDIF(B1,NOW(),"Y")&"岁生日快乐!","距"&A1&DATEDIF(B1,NOW(),"Y")+1&"岁生日还有"&DATE(YEAR(NOW())+IF(TODAY()<DATE(YEAR(NOW()),MONTH(B1),DAY(B1)),0,1),MONTH(B1),DAY(B1))-TODAY()&"天"...
用单片机奏出生日快乐歌答://生日快乐歌节拍表,节拍决定每个音符的演奏长短 uchar code SONG_LONG[]={9,3,12,12,12,24,9,3,12,12,12,24,9,3,12,12,12,12,12,9,3,12,12,12,24,0};//延时 void DelayMS(uint x){ uchar t;while(x--) for(t=0;t<120;t++);//播放函数 void PlayMusic(){ uint i=...