几千年来,我国历代著述太多了,图书数量多得难以计数,人们常用“浩如烟海”来形容。这些图书的主要类别,在刘歆、班固时代,是六分法;自隋唐以至清,大致可说都是四分法。刘、班二氏分群书为六艺、诸子、兵家、诗赋、术数、方技六大类。荀勖改分为甲乙丙丁四部,《隋书·经籍志》也分四部,并确定经、史、子、集的名称。清修《四库全书》,就是分群书为经史子集四部,四部之下再分四十三类。我国目录学家认为图书分类可以表示学术源流,我们试就六大类变为四 For thousands of years, there are too many writings in our country, and the number of books is too large to be counted. People often use “vast” to describe it. The main categories of these books, Liu Xin, Ban Gu times, is the six-point method; since the Sui and Tang Dynasties and Qing, generally speaking, are four-point method. Liu, class two’s group book for the six arts, philosophers, military strategist, poetry, surgery, skill six categories. Xun Xun is divided into three B and C Ding Ding, “Sui Shu · Ji Zhi Zhi” is also divided into four, and to determine the name, history, son, set. To clean up the “Siku Quanshu” is to divide the book into four chapters in the history book, and then under the four books in forty-three categories. Our catalogists believe that the classification of books can indicate the academic origin, we try to change the six categories into four