Bofeng's writing robot does not have the writing function of Lian Bi. Bofeng's writing robot can only move in three fixed directions: horizontal, vertical and left. It can't achieve Lian Bi's handwriting skills, so it can't write in Lian Bi. Compared with manual writing, the writing robots on the market write single lines, and the words written can't reflect the priorities of strokes and can't write beautiful strokes.