;PIC16F877A实现音乐播放程序（《两只老虎》片段）

;功能说明:
;1.通过驱动实验板上的蜂鸣器发声，实现音乐的播放。
;2.从TABLE中取出播放音乐的音调（1、2....7）通过改变该表中的值即可实现播放不同的音乐。
;3.从TABLE_YP中取出播放音乐的音频，即该音调持续的时间。
;4.调整DELAY延时的长短即可实现音乐播放的快慢。(PIC16F877A music player program (two tigers)

Function descr iption:
1., by driving the buzzer sound on the experimental board, to achieve music playback.
2.. The music (1, 2,.7) that extracts the music from the TABLE can be played differently by changing the values in the table.
3. take out the audio that broadcasts music from TABLE_YP, that is, the duration of the tone.
4., adjust the length of DELAY delay to achieve the speed of music playback.)