《永乐大典》是编纂于明初的大型类书,所收文献多为宋元旧本,是辑佚宋元典籍之渊蔽。宋元方志丛刊中所录方志,有的是已亡佚而整本从《永乐大典》中辑佚出来的;有的则是残本,通过《永乐大典》所录该方志加以辑补过的。因此,《永乐 “Yongle Ceremony” is a large class book compiled in the early Ming Dynasty, the received texts are mostly old books of the Song and Yuan Dynasties, is a collection of books of the Song and Yuan dynasties. Some of the recorded chronicles recorded in the Song and Yuan Fang Zhicong series have been lost or lost in the entire edition of the “Yongle Grand Ceremony”; others have been copied from the chronicles recorded in the “Yongle Ceremony”. Therefore, "Paradise