通过对诗歌用韵的考察可以分析诗人所处时期的语音系统及方音现象 ,这已经被认为是“主要从文献研究汉语语音史”的方法之一。这些诗歌的用韵不只包括古体诗之间的通叶 ,而且包括近体诗 (主要指宋代诗人的 )中的借、出韵现象。借、出韵现象也是诗人实际语音的流露 ,我们从韩诗的用韵情况就可得出这一结论。 By examining the rhyme of poetry, we can analyze the phonetic system and the phonetic phenomenon during the period of the poet, which has been considered as one of the main methods of studying the history of Chinese speech from the literature. The rhymes of these poems include not only the links between archaic poems, but also the borrowing and rhyme phenomena in near-type poetry (mainly referring to the Song Dynasty poets). Borrowing and rhyming phenomena are also the actual poet’s expression of speech. We can draw this conclusion from the rhyme situation of Han Yong’s poems.