class Complex 定义一个复数类，并编写构造方法的内容

For over half a century, complexity science has yielded a bounty of research. The complexities of dynamic systems, networks, and agent-based models have been subjects of analysis by researchers. The emergence of large language models (LLMs) and ChatGPT highlight this field's importance. By using dynamic systems and non-linear interactions, ChatGPT shattered our notions of what is possible in predictive modeling and opened a world of new opportunities. It is time model builders and data scientist