As shown in the picture:
Strokes (bǐ huà) usually refer to the uninterrupted points and lines of various shapes that form Chinese characters, such as horizontal (一), vertical (丨), Apostrophe (丿), dot (丶), fold (乛), etc., are the smallest connected units that make up the glyphs of Chinese characters. Strokes sometimes also refer to the number of strokes. For example, there is a Chinese character stroke index on the front of a calligraphy book.
When expressing these two meanings, "stroke" can also be used as "stroke", but currently it is standardized as "stroke". In addition, strokes also refer to pictures drawn with pens. This meaning is generally used in ancient books, but is not commonly used or used by people nowadays.
Extended information:
The evolution of Chinese characters
Chinese characters mainly originated from pictographic pictures for recording events, and pictographic characters are the basis for the formation and development of the Chinese character system. The subsequent evolution has gone through a long process of thousands of years, and has gone through stages such as oracle bone inscriptions, bronze inscriptions, seal script, official script, regular script, cursive script, and running script. Regular script is still used, but it has not yet been completely finalized.
Oracle bone inscriptions mainly refer to the oracle bone inscriptions of the Yin Ruins, which are characters carved (or written) on tortoise shells and animal bones by the royal family in the late Shang Dynasty (14th to 11th centuries BC) for divination and recording.
About 150,000 oracle bones and more than 4,500 single characters were found. The contents recorded in these oracle bone inscriptions are extremely rich and involve many aspects of social life in the Shang Dynasty, including not only politics, military, culture, social customs, etc., but also science and technology such as astronomy, calendar, medicine, etc.
Judging from the approximately 1,500 single characters that have been identified in oracle bone inscriptions, it already possesses the character creation methods of "pictogram, meaning, pictogram, reference, transfer, and pretense", demonstrating the unique charm of Chinese characters. Documents based on tortoise shells and animal bones from China's Shang Dynasty and early Western Zhou Dynasty (approximately 16th century BC to 10th century BC).