基于matlab程序，计算时间序列的样本熵，样本熵是在近似熵的基础上修改的，旨在消去近似熵自身匹配的问题。(Based on the matlab program, the sample entropy of the time series is calculated, and the sample entropy is modified on the basis of the approximate entropy, which aims to eliminate the problem of the matching of the approximate entropy itself.)