java.time.Year.minusYears() 方法示例 java.time.Year.minus(TemporalAmount amountToSubtract) java.time.Year.now() 方法示例 java.time.Year.minusYears() 方法示例 package com.codingdict; import java.time.Year; import java.time.temporal.ChronoField; public class YearDemo { public static void main(String[] args) { Year date = Year.of(2017); System.out.println(date.get(ChronoField.YEAR)); System.out.println(date.minusYears(4).get(ChronoField.YEAR)); } } java.time.Year.minus(TemporalAmount amountToSubtract) java.time.Year.now() 方法示例