诗的作用，除了叙事，不外两途：一是言志抒情，一为写景咏物。前者当然是诗人自我的直接表现，后者也是诗人情志的折射。杜集中有大量叙事、咏怀的作品（这是杜甫生平、思想的重要表征，也是历代研杜者用力最勤之处），同时还有为数不少的写景咏物的诗。在过去一段时间内，其 The role of poetry, in addition to narrative, but two ways: one is dialectical lyrical, one for the scene chanting thing. The former is, of course, a direct manifestation of the poet’s self, which is also a refraction of poet’s sentiment. Du has a large number of narrative, Yong Huai works (this is Du Fu’s life, an important characterization of ideas, but also the hard work of the ancient people), as well as a large number of poems written objects. In the past period, it