Oblique si is mostly used in ordinary subjects and is a response apostrophe. For example, oblique si should be used for apostrophes from, herringbone and other left and right apostrophes. Let's take a look at the application of oblique strokes in regular script characters.
The word "base" is also a word that echoes left and right. Pen transport: use a pen to start from the peak, gradually press the nib obliquely downward during the writing process, and finally complete the flat tape. In fact, it is relatively easy to remember the different stroke angles.
The process of "pressing" gradually evolved from "straight pressing" to "wave pressing"
As far as the existing stone carvings are concerned, in 66 AD, some arcs began to appear. For example, the word "to" is pressed up with an arc. As far as fonts are concerned, this is related to the appearance of official script. In Qin dynasty, most seal scripts were round lines, while official scripts turned round lines into straight lines. When the "eight-point plum" appeared, the waves began to turn around.
The appearance of "eight-point Li" is related to Wang Cizhong. Wang Cizhong, born in Juyang, Shanggu County (near the ancient city of Huailai County, Hebei Province), was a calligrapher in the Eastern Han Dynasty (in Qin Dynasty). Years are weak, replacing Cang Xie's old prose with today's official script.
Wang Ci-zhong increased the artistry of calligraphy and added "wave potential" to long strokes, which is usually reflected in long strokes or strokes. In Cao Quanbei, the long, horizontal and undulating waves, one high and one low, have obvious wave potential.
In this case, the "straight line" gradually evolved into a "waveform". The fluctuation of the pen in "A Monument" and "The West Chamber" is very obvious. Wei Heng's "Four-body Book Potential" also said: "The ancient king initiated the law with kindness, and the emperor was good and versatile." That is to say, during the Lingdi period of the Eastern Han Dynasty, Wang Ci-zhong's "Kaifa" has been widely circulated and produced many excellent writers.