Zhang Xu cursive script is unpredictable; Ou Yangxun's regular script is rigorous and neat, with vivid charm; Yan Zhenqing's regular script is vigorous and has a broad structure; In the good script of Chu Tunnel, Jinsheng and Yelu Wen Ya; Liu Gongquan's cursive posture is handsome and vigorous; Zhao Mengfu's running script is vigorous and graceful.