拙著《中唐至北宋的典范选择与诗歌因革》的“绪论”部分回顾了文学史、政治史、制度史、经济史、社会史、文化史、思想史、汉语史等诸多领域的“唐宋变革”研究,指出不管研究哪个历史时期,都要追溯根源,追踪流变,此谓“瞻前顾后”。从唐代往后代看,便会注意到“唐宋变革”或“中唐—北宋连贯”;从明清往前代看,便会发现有“南宋元明转型”。不管研究什么领域,都需要借助左右相关领域和学科,此谓“左顾右盼”。不管采用何种方法、研究何种专题,都需要充分搜集材 My Humble Opinion “The Model Choice and the Poem for the Revolution of the Mid-Tang Dynasty to the Northern Song Dynasty” reviews the literary history, political history, institutional history, economic history, social history, cultural history, ideological history, Chinese history and other fields “Tang and Song Reform ” research, pointed out that regardless of which historical period of study, we must trace the root causes, tracking changes, this is called “looking ahead”. From the Tang Dynasty to future generations to see, we will notice “Tang and Song Revolution ” or “Mid-Tang Dynasty - Northern Song Dynasty coherence ”; from the Ming and Qing dynasties on behalf of the generation, we will find “Southern Song and Yuan Dynasties transition ”. No matter what areas of research, you need to help the relevant fields and disciplines, this is called “look around”. No matter what method, what kind of topic to study, we need to fully collect material