中文说明：对几种非线性动力学系统（logistic、henon、rossler、duffing)通向混沌的途径进行了描述，利用matlab绘制了时间序列图、吸引子特征图、以及往返图，适用于对混沌系统的初步认识。
English Description：
In this paper, the approaches to chaos of several nonlinear dynamical systems (logistic, Henon, Rossler, Duffing) are described. The time series diagram, attractor characteristic diagram and round trip diagram are drawn by using MATLAB, which is suitable for the preliminary understanding of chaotic systems.