Mixing traditional and simplified calligraphy is not allowed in some large-scale calligraphy exhibitions. It will be regarded as "error" and "flaw" by some judges and eliminated. Usually, there are two cases of "mixing traditional and simplified". One is unintentional, that is, the author forgets the "traditional" writing of a certain word and simply abbreviates it; the other is intentional, that is, in public places and some scenic spots. The inscriptions are abbreviated considering that the traditional writing of some characters is not common and difficult for the public to recognize, such as the three characters "Guanyinyan", among which the traditional writing of "yan (rock)" is very complicated