The color contrast is strong and the color is more prominent. White bird feathers are lined with river walls, and blue and white set each other off; Green hills are lined with red flowers, and green and red compete. The word "Guo" makes the waterfowl whiter and whiter with the blue sediment of the river, and writes deeply and picturesque; And a word "desire" endows the flower with anthropomorphic dynamics and swaying. There are four poetic images of rivers, mountains, flowers and birds, which are depicted in four colors: green, green, red and white. The scene is fresh and pleasing to the eye.
(2) Use the method of contrast. Contrast inner boredom with beautiful scenery. The artistic feature of this poem is to write sadness with musical scenes. Only through its extreme statement of harmonious spring can we compare the poet's desire to go home. Expressed the poet's homesickness.