What school is it that Shu Dao is difficult to get to the sky?

Seven-character Yuefu poems. According to official website information of China Poetry Network, the theme of Shu Dao Nan is Li Bai's seven-character Yuefu poem. Shu Dao Nan uses Yuefu, an ancient theme, to develop rich imagination in a romantic way, and artistically reproduces the grandeur, suddenness, tenacity, ruggedness and incomparable majestic momentum of Shu Dao Nan, thus eulogizing the magnificent scenery of mountains and rivers in Shu, showing the magnificence of mountains and rivers in the motherland, and fully expressing the poet's romantic temperament and love for nature.