摘要
郑玄是汉代易学史上的重要人物。一方面，他推出爻辰说、五行说及九宫数说、爻体说等，使汉代象数易学发展到了又一高峰。尤其是独具特色的爻辰说，更成为他“多参天象”而与其后“全释人事”的王弼易学不同的重要标志。另一方面，他继承古文费氏易学的传统，倾心于对经文进行义理性的诠释，倾心于揭示和把握由各种卦爻象体现出来的天地变化之道，从而使象数易学烦琐、虚妄的弊端暴露无遗，并将其引入绝境。郑玄在易学白象数易学向玄学派易学转型过程中起着重要的激发和推动作用。
Zheng Xuan was one of the most important man in the field of Yi theory in Han dynasty. On one hand, he put forward the Yao Chen theory, the Wuxing theory the jiu gong shu theory and Yaoti theory etc.which developed the Xing Shu Yi theory to its climas.Especially his distingguishing Yao chen theory became the inportant mark to differantiate his'duo can tian Xiang'and Wang Bi's 'quan shi ren shi'.On the other hand,he the inherited the tradition of Fei Shi Yi theory and was absorbed in making the explanatory netes on the scripture and displaying the doctrines of changes in universe that various divinatory symbols showed,so he revealed the abuses of Xiang Shu Yi theory and led it to impasse.Therefore,Zhang Xuan Played an important the in turning the Xiang Shu theory to Xuan Pai Yi theory.
