文字的产生是人类文明史上的一个重大进步。作为语言的记录符导，它不仅可以克服语言在时间和空间条件方面所受的种种限制，可以扩大语言的作用，还可以使语言更加充实、丰富和规范。中国的55个少数民族中，除回族、满族通用汉语外，都有自己的语言。但在本世纪50年代以前，中 The production of words is a significant progress in the history of human civilization. As a linguistic record, it can not only overcome the limitations of language in terms of time and space, expand the role of language, but also enrich, enrich and standardize the language. Among the 55 ethnic minorities in China, except for the Hui and Manchu Chinese, all have their own language. But before the 1950s, China