java.time.Period.addTo() 方法示例 java.time.OffsetTime.withSecond() 方法示例 java.time.Period.between() 方法示例 java.time.Period.addTo() 方法示例 package com.codingdict; import java.time.LocalDateTime; import java.time.Period; public class PeriodDemo { public static void main(String[] args) { Period period = Period.of(1,1,1); LocalDateTime date = LocalDateTime.now(); System.out.println(date); date = (LocalDateTime)period.addTo(date); System.out.println(date); } } java.time.OffsetTime.withSecond() 方法示例 java.time.Period.between() 方法示例