说明：  检测R波波峰的程序，效果很好，使用的是小波变换，同时还加入了去除基线漂移的程序，只要在这个基础上稍微改动就能用于其他波峰检测
(R wave peak detection program, works well, using wavelet transform, and also joined the program to remove baseline drift, as long as a slight modification on this basis can be used for other peak detection)