本文以人教社编写的高中语文文言部分特殊用字(古今字、通假字、异体字)的注释为考察对象,尝试探讨“同”、“通”、“后作”三种用法的使用标准,并对古今、通假、异体三种不同的用字现象进行粗浅的分析。 This article is based on the notes of the special Chinese characters (ancient and modern Chinese characters, common fake words, variant characters) written by people’s education clubs as the object of study, trying to explore the relationship between " The usage standard of the kinds of usage, and carries on the superficial analysis to the ancient and modern times, the common false, the foreign body three kinds of different characters uses the phenomenon.