东汉时期给汉字注音基本上停留在读如、读若的层面上,所以许慎在编纂《说文解字》没有为每个汉字出具读音。反切注音法流行以后,研习《说文》的人就可能尝试著为《说文》的每个汉字加注反切,正如徐铉在《校定说文序》中所说:“《说文》之时,未有反切,后人附益,互有异同。”文献上有《演说 In the Eastern Han Dynasty, Chinese characters phonetic basically stayed on the level of reading, reading, etc. Therefore, Xu Shen did not pronounce pronunciation for each Chinese character in compiling Shuowen Jiezi. After the antisenophobia epidemic, those who study “Shuo Wen” may try to add an inverse to each character of “Shuo Wen”, as Xu Xuan put it in “The School Preface”: “ ”At the time, there is no anti-cut, future generations benefit, similarities and differences with each other.“ ”Document" speech