“而”、“则”是文言虚字中使用频率极高的词(字)。其用法也十分复杂多样。但其语法作用可以通过辨析找到联系的线索,从而可以提纲挈领,以简驭繁。首先应找出虚词(字)最基本的核心用 “And ”, “Then ” is the most frequently used word (word) in classical Chinese. Its usage is also very complex and diverse. However, its grammatical role can be found through the analysis of clues to contact, which can be outlined collar collar, to simplify Yu Fan. First of all we should find out the most basic core of function words (words)