From the extension point of view, there are many ways to write Xue Han's post, such as "Ji, Twentieth, Qing and Ten", and the places to write it are mostly on the left side of the word, such as "Qing, Xin and He". Such pen-using characteristics can be verified in ink, such as the words "stop, chaos and face" in funeral signs and the word "cut" in frequent mourning signs. "Fang Bi feature" is a major feature of Wang Xizhi's calligraphy, and it is also the result of Wang Xizhi's wide acceptance of various cursive scripts. Wang Xizhi's "After Mrs. Wei's Pen Drawing Title" said that "his cursive script also needs to be based on potential, eight points, and mixed with ancient officials", and in "On Books" he said that "every word is like a seal, or like a head". For the combination of Wang Xizhi's Another Luo, please refer to Cai Yong's Three-body Classic of Stone. From the unearthed Qin bamboo slips and Chu bamboo slips, it can be seen that many of them are reversed into the flat, while Chu bamboo slips are published. Therefore, Wang Xizhi's application is based on the official script of the Eastern Han Dynasty, taking the ancient Chinese character (six-country script)-Chu bamboo slips.
In the Qing Dynasty, Kang Youwei's Talk about Guang Yi and Zhou Shuang was stuck in the "Twenty-one Sticking Method" and "When the pen was twisted, Fang Bi turned. If the round pen is not twisted, it will be paralyzed, and if Fang Bi does not turn, it will be sluggish. " . Compared with the round pen, Fang Bi's skills are more complicated, such as sharpening the front, grasping the wrist, reversing the pen, or vibrating the pen quickly and so on. These characteristics can be found in Wang Xizhi's ink. "Fang Bi added a downward movement after the counter-front came over, and then started to enter the writing stage" (Hu Kangmei's My Opinion on Seventeen Posts), and this counter-front included the top movement of an arc. "Snow Cold Stick" has both Fiona Fang and pen, with sharp edges and corners and a soft ribbon. But nature is harmonious. Ming An Shifeng's Moline Express said: "The sixty-three words in Snow Cold of Xizhi are smooth in appearance and harmonious in flesh and blood."