When starting a pen, you usually use a hidden front, which has certain emphasis and expression: you should first go down right (horizontally) and down (vertically), so that the strokes will be round without revealing the nib, and when starting a pen, you should hide the front, but you don't have to hide the front when writing, but you should be careful not to cross, and you should also close the front (back) space; Hook, the pen tip should be empty behind the front, the square strength should be subtle and steady, the long vertical pen should hide the front, and the pen should return to the front. Hidden front's words look powerful and have an inherent implicit aesthetic meaning. The point of writing is one yuan, the head is hidden, the edge is unbreakable, and the nib is hidden in the stippling, that is, the pen writes at the front, writes in the middle and closes at the back.