diff.getYears()返回0。从LocalDate出生日期计算年龄

import java.time.LocalDate;
import java.time.Period;

public class AgeCalculator {
    public static void main(String[] args) {
        LocalDate birthDate = LocalDate.of(2000, 1, 1);
        LocalDate currentDate = LocalDate.now();
        Period diff = Period.between(birthDate, currentDate);
        System.out.println("Age: " + diff.getYears());
    }
}

import java.time.LocalDate;
import java.time.Period;
import java.time.temporal.ChronoUnit;

public class AgeCalculator {
    public static void main(String[] args) {
        LocalDate birthDate = LocalDate.of(2000, 1, 1);
        LocalDate currentDate = LocalDate.now();
        
        // 使用 Period 计算年龄
        Period diff = Period.between(birthDate, currentDate);
        System.out.println("Age in years: " + diff.getYears());
        
        // 使用 ChronoUnit 计算精确的天数
        long days = ChronoUnit.DAYS.between(birthDate, currentDate);
        System.out.println("Age in days: " + days);
    }
}