The theory of complex adaptive system (CAS) is a focus of the research ofcomplex system in the past decade, which provide us a novel method and a newdirection of complex system research.

• 复杂适应系统（Complex Adaptive System, CAS）理论为复杂系统研究提供了一个新思路与一种新方法，是当前复杂性科学研究的一个热点。