許多人利用類書來校勘其他類型的古籍,常見的,如使用《冊府元龜》校史,特別是校兩《唐書》及其以上的正史。校勘結果,往往是擇善而從。現在我們要說的,卻是一般的故事類型的類書中所載故事的錄文,各個時代的不同書籍所載相同故事往往差異頗大,而且從文字上觀察,頗有加入當時書面語等成分,顯露出與時俱進之勢。這就難於據早期所引者為典要,以校後來者。我們從現存最早的完整類書《經律異相》中取出一則為例,並聯繫其後的 Many people make use of class books to collate other types of ancient books. Commonly used books include the history of the school, especially the two Tang books and the official histories of the above. Collation results, often choose the good from. What we are going to say now is an essay of a story contained in a general story type book. The same stories contained in different books of different times often have quite different norms. Moreover, from the perspective of writing, Revealing the trend of advancing with the times. This is difficult to use as early as cited as a code to school later. For example, we take one of the earliest complete categories