中文说明：对心电RR间期进行LF,HF特定频段的能量以及功率谱分析，并且针对某特定频率范围之内，进行画图，得到批量的计算结果。要求输入的RR间期，输出则形成excel 表格的形式表现LF,HF,以及标准化之后的各种指标参数
English Description：
LF,HF on RR intervals of ECG energy at specific frequencies and power spectrum analysis and focusing on a specific frequency range, drawing, get the batch calculation results. Requires input of the RR interval, LF,HF output into Excel table format, and the standardization of indicators parameters