本文以永乐大典戏文三种为中心，对其形式体制、角色表演和题材结构进行系统的比较和分析。
This thesis , based on Yong Le Da Dian Xi Wen San Zhong , has been written to systematically compare and analyze its format and system , role and performance , as well as subject and structure .
永乐大典戏文三种