The stroke order of flash characters is dot, vertical, horizontal hook, left, and dot.
Flash: shǎn ㄕㄢˇ. The radical "门" is simplified to "门". Simplify and save strokes based on ancient calligraphy. "Shuowen Jiezi": "Shan, _toumenzhongye. Followers are in the door.". People passing by the door as if peeping are the paradigm of dodge.
Original meaning: sudden appearance. Such as: flash, flash, sparkle, flash.
Extension: Extended meaning refers to "the lightning in the sky": lightning, flash.
Extension: Extended meaning "turn sideways to avoid". Such as: dodge, duck.
Extension: Extended meaning "due to excessive movement, causing pain to a part of the muscles." Such as: flashing the waist.
Extension: also used as a surname.
Detailed explanation:
(1) (Knowing. From the person in the door. Original meaning: peeking from the door).
(2) Same as the original meaning, extended to peek [peek out through a door]
Peeping one's head in the door. ——"Shuowen". In the Southern Dynasties, Pei Songzhi of the Song Dynasty quoted "Wei Lue·Biography of Harsh Officials": "In the daytime, he flashes from the boudoir between the walls."
So the fish is not _. ——"Book of Rites·Liyun". Note: "_ means flash." Shu: "Shen means sudden presence and sudden absence, so the word is from the people in the door. Many scriptures cover it."
(3) Sudden presence and sudden absence , suddenly appear[flash; flicker]
_Flash like a temporary dawn_——Mu Hua's "Hai Fu". Note: "Temporary appearance."