主要功能是计算均值、标准差、方差、偏斜度、峭度、 峰峰值、方根幅值、平均幅值、峰值、 波形指标、峰值指标、脉冲指标、裕度指标。-The main function is to calculate the mean, standard deviation, variance, skewness, kurtosis, peak to peak, the square root of amplitude, average amplitude, peak waveform index, peak ind