最贊回答 / cisong
需要先修改系統的locale, 才有正確結果.> Sys.setlocale("LC_TIME","English")[1] "English_United States.1252"> strptime('Mon','%A')[1] "2016-02-05 CST"> Sys.setlocale("LC_TIME","Chinese")[1] "Chinese (Simplified)_People's Republic of China.936"> strptime('Mon',...