三中三公式如何得来的

简介：Seeing that the prince raised his head, as if he was very interested in the huge plaque on the first pass in the world, Fan Zhiwan, the governor of Liaodong who was accompanying him, hurriedly explained: Your Highness, this plaque was written by Xiao Xian, an official who became an official in the Chenghua period of our dynasty. Xiao Xian's calligraphy is exquisite and his writing power is strong. He is a great master of his generation. Dong Qichang once said that no one in the world can surpass Shanhaiguan in terms of plaques.