(2) They all used the contrast method, and set off plum blossoms with white snow to express their surprise and love for plum blossoms.
However, the performance angle is different. In Zhang Wei's "Morning Plum", from the visual point of view, an "I don't know" and a "doubt is" are added, and the poet's vision is like snow instead of snow. Finally, when he looked intently, he found that it was a cold plum tree growing near the water, and the poet's doubts were eliminated, and the "early" of early plum was also pointed out. Wang Anshi's plum looks like snow from a distance from the perspective of smell, but he also knows that it is not snow from a distance, because there is a faint fragrance, which points out the early bloom and beauty of plum blossoms.
Question 1: "A tree with cold plum and white jade belt" refers to a tree with plum blossoms in early bloom and white branches as jade. Just after the cold winter, the flowers have not blossomed, and the ice and snow have not melted. Only a bunch of cold plums brings vitality and hope to the world. The characteristics of plum blossoms are: white (color), early (time), and the word "cold" refers to the early opening time of plum blossoms tomorrow morning.
Question 2: They all use the contrast method to set off plum blossoms with white snow to express their surprise and love for plum blossoms. From the perspective of vision (white), Zhang Shi wrote the form and spirit of early plum blossom, and also wrote the cognitive process that the poet explored and recorded. Judging from the smell and aroma, Wang's poems are suspected of snow at first, but when the faint aroma strikes, it is known that it is plum, not snow.