说明：  CC算法应用关联积分能够同时估计出时间延迟和嵌入维数，是相空间重构的前提。 本程序通过C-C算法计算duffing方程产生的混沌时间序列的时间延迟和嵌入维数。
(CC algorithm can estimate both time delay and embedding dimension by using correlation integral, which is the premise of phase space reconstruction. This program uses C-C algorithm to calculate the time delay and embedding dimension of the chaotic time series generated by Duffing equation.)