汉代草书大家杜度的生平,史传不载;世之言杜度者皆云其生卒年不详,述其事迹亦颇恍惚。后汉灵帝时人赵壹《非草书》中已云“杜(度)、崔(瑗)、张子(张芝),皆有超俗绝世之才”。西晋卫恒《四体书势》云:“至章帝时,齐相杜度,号称善作。”索靖《草书势》亦提到杜度。北朝王惜《古今文字志目》列有杜度的名字。至南朝宋人 Han Dynasty cursive Du lives, history is not contained; the world of words are all Duyun are born and died unknown, describing their deeds are quite trance. After the Han dynasty emperor Zhao one “non-cursive” in the clouds have been “Du (degree), Cui (瑗), Zhang Zi (Zhang Zhi), all have supernatural talent”. Western Wei Wei Heng “four books”: “To Zhangdi, Qi Dudu degrees, known for good work.” “Suo Jing” Cursive “also referred to Du degrees. Northern Dynasties Wang Xi ”ancient and modern writing Zhimu" Dudu name is listed. To the Southern Song Dynasty