The key of the debate of the theories of Ao capital and Zheng Bo of Zhengzhou Shang city mainly lies on the four factors, i. e. the beginning time, location recorded by the ancient documents, ambience and learning system.

• 郑州商城?都说与郑亳说合理与否的关键,主要取决于郑州商城的始建年代、文献记载的地望、周围环境和学术体系等四个方面。