What's the relationship between style and font, isn't it? As mentioned above, there are also many views on this issue (including some future issues). Here are two examples for reference.
"Because of the change of carrier, because of the development of handwriting display, or painting. Or behavior, or writing ... Fonts are constantly changing, such as Oracle Bone Inscriptions, bronze tripod, bamboo slips, seal script, regular script, running script, and. In the display of various systems, people's writing functions are inevitably different, so there are differences in "calligraphy styles" such as Suo Jing, Zhang Zhi, Wang Xizhi, Huai Su, Ou Yangxun, Yan Zhenqing, Su Dongpo and Mi Fei ... It takes some time to browse only once. Among them, it is beautiful. "
-Calligraphy Course (edited by Ouyang, Higher Education Press, 2008)
"In popular idioms, a font is a book. For example, official script, of course, is a font, but no one calls it official script. Because of writing, we all call it official script. Feng, Kai, Xing and Cao are all like this. Another example is the European style. Is it a font or a book In the Qing dynasty, people said that calligraphy was written in European characters, and some people said that calligraphy was written in Yan characters, but few people said that calligraphy was written in European characters and Yan characters. This is also a customary and convenient name. In fact, Europe, Yan, Liu, Zhao, Su, Huang, Mi Zhu and Cai should write rather than write. Fonts are all open letters, but the personal temperament and style of calligraphers are at work, and their attitudes are different. Of course, it should not be the objective fact of the word, but the subjective behavior of the book. Therefore, although the ancients often confused "font" with "calligraphy", we can give it a definition today: "font" is biased towards "words." Calligraphy is biased towards calligraphy (art). This is a clear definition. "
-The World of Lines (by Chen Zhenlian, Zhejiang University Press, 2002)
The above two materials illustrate the difference between calligraphy and font. Font refers to seal script, official script, model, line and grass. The style of calligraphy comes from the style of writing a certain font, such as Yan Zhenqing's Yan style, Liu Gongquan's Liu style, Ou Yangxun's European style and Zhao Mengfu's Zhao Ti style. They all write regular script with different styles. These styles are loved by the world, have withstood the test of history, become examples for people to learn and become recognized books. Of course, everyone can have their own ideas on this issue, not black and white, either one or the other.