2. Swallowtail: This is a typical feature of the pen used in official script, especially in official script, the main pen is horizontal, and almost all paintings are used in this way. The so-called "silkworm head" refers to hiding the (reverse) front in the process of using the pen, and at the same time writing the stroke shape formed in the process of starting the pen into a shape similar to that of the silkworm head. "Dovetail", that is, press the pen at the pen-receiving place, and then pick the pen obliquely to the upper right.
3. Turn the circle into a square and turn the arc into a straight one: these are two basic methods to simplify the official script. But if you don't know the circle of seal script, it is not easy to master the side of official script. Because the straight painting or square folding in official script contains the arc potential of seal script, the straight of official script often has obvious ups and downs and is full of vitality. In fact, the brushwork of official script is based on the way of stroke movement.
4. Change the painting to a point and break it: We know that the seal script does not need a point, that is, the point is just a dot. However, the points in the official script are independent, no longer attached to the painting, and the point methods are increasingly rich, including flat points, vertical points, left and right points, three points (by water) and four points (by fire).
5. In addition, the official script has broken many strokes written in seal script, opening the door to writing. Later, regular script played like this, allowing traces of cohesion between pens, and even breaking the meaning of pens.
6. Strengthen the thickness change of strokes: There is no trace of vertical strokes in seal script, while the official script intentionally emphasizes the movements of strokes, resulting in significant changes in the thickness and Lian Bi of strokes, which are clearly reflected in the three processes of starting, moving and using a pen. This is very similar to later regular script.