When Yang Di opened the Beijing-Hangzhou Grand Canal, it went to Yuhang in the south and Beijing in Zhuo Jun in the north, so that he could visit Jiangdu. Pi Rixiu also wrote a poem: The death of the Tao will be a river, and it will take a thousand miles from now on. If there is no water temple dragon boat, there are not many theories about * * *. Fully affirmed the great role of the Grand Canal in north-south traffic. He also said that if Emperor Yang Di did not crave pleasure, this achievement alone would be comparable to Dayu's.