How to write bamboo official script?

Brief introduction of official script: Han Li, also known as, is a solemn font commonly used in Chinese characters. Its writing effect is slightly wide and flat, and the horizontal painting is long and the vertical painting is short, showing a rectangle, paying attention to "silkworm head and goose tail" and "twists and turns". Lishu originated in the Qin Dynasty and was compiled by Cheng Miao. It reached its peak in the Eastern Han Dynasty, which had a great influence on later calligraphy. Calligraphy is called "Tang Kai of Han Li".