How many years did calligraphy class last weekend?

Take calligraphy classes on weekends for at least 2-3 years. According to the relevant public information, the calligraphy special class must be learned this time. 2~3 years is just an ordinary introduction. If you really want to be the first master of calligraphy, you must work hard for ten or eight years. Calligraphy is a great test of a person's patience, that is, we must be very calm when practicing calligraphy.