* 2021.04.22 17.20.21.234 (년.월.일 시간:분:초.밀리초) 날짜 출력 var date = LocalDateTime.now() date.format(DateTimeFormatter.ofPattern("yyyy.MM.dd HH:mm:ss.SSS")) LocalDateTime 날짜 형식 변경 fun main() { var date = LocalDateTime.now() println("date = $date") println("date = ${date.format(DateTimeFormatter.ofPattern("yyyy.MM.dd HH:mm:ss.SSS"))}") } [result] date = 2021-04-21T18:18:44.734400 date = 2021.04.21 18:18..