How to compile Sino-French classified indexing?

According to the characteristics of books and materials, the classification system is determined according to the principle of compiling from total to sub-division and from general to specific, and 22 categories are formed on the basis of 5 basic categories. The symbol of China Library Classification adopts a mixed number of Chinese phonetic alphabet and Arabic numerals. That is, a letter represents a big category, and the order of big categories is embodied in alphabetical order. The letters are followed by numbers, indicating the division of the following categories. Numbers are numbered in decimal.

Marxism-Leninism, Mao Zedong Thought and Deng Xiaoping Theory.

Philosophy, religion

Introduction to social science

Politics, law

E military

F economy

G. Culture, science, education and sports

H. Language and writing

I. Literature

J art

History, geography

Introduction to natural science