这是今天刚写的代码，该代码主要是利用小波分析来检测电力线信号中的奇异点，并且比较在不同谐波条件下，奇异点检测的区别-This is today, just write the code, the code is the use of wavelet analysis to detect the singular points of the power line signal, and compare the different harmonic conditions, the singular point detection difference