明朝人杨守栋任洗马时,回家省亲,住在一个驿站里,驿丞问他,“您每天刷洗多少马匹?杨哭笑不得,只好说:”勤则多洗,懒则少洗,没有一定数额。“其实,洗马与刷洗马匹风马牛不相及。先秦时候,”洗“字与”先“字同音,洗马就是先马,即”马前引导之人“。秦汉时,洗马是太子属官,如同侍从。隋唐以后成为太子属下专门管理书籍的官吏,是比较有身份的文职官。 Yang Shou-dong when the Ming dynasty was a washer, go home pro, living in a post, station Cheng asked him, ”How many horses do you brush daily?“ Yang laughed, had to say: Not a certain amount. In fact, when washing the horse and brushing the horses, there is no such thing as ”horse washing“ and ”first" During the Qin and Han dynasties, washing the horses was a prince 's servant, as a servant, and became a special official under Prince Edward' s administration after the Sui and Tang Dynasties.