This is a white paper based on a part of my doctoral project that focuses on ecosystem strategy. This paper examines a complex setting (i.e., industrial internet, but with a different meaning from GE's, can be roughly understood as B2B internet, or industrial digitalization), where ecosystem creation entails the arrangement of a portfolio of platforms, rather than of a single platform, as a response to the high level of environmental complexity. I wrote this paper in Chinese, as the reader is Chinese companies in the first place. The academic paper is under development in English.