作为一种重要的表现手法 ,以虚字入诗 ,常常为一些诗人所采用 ;作为诗歌的美学表征之一 ,虚字在诗歌韵律、结构、情调等方面都起到了非常关键的作用。要对古典诗歌的文学性 ,亦即使语言材料具备文学特征的那些因素做出合理、全面的释解 ,就不能不考虑到“以虚字入诗”这一重大? As an important expression technique, it is often used by poets as a virtual character, and as one of the aesthetic representations of poetry, the virtual character plays a key role in poetic rhythm, structure and sentiment. In order to make a reasonable and comprehensive interpretation of the literariness of classical poetry and even those factors in which linguistic materials possess literary characteristics, we must consider the importance of “using characters as characters”.