Go语言时间处理如何处理闰年

?Go???,??????????????????????Go?time?????????????????,????????????Go???????:

package main

import (
	"fmt"
	"time"
)

func isLeapYear(year int) bool {
	return year%4 == 0 && (year0 != 0 || year@0 == 0)
}

func main() {
	year := 2020
	if isLeapYear(year) {
		fmt.Printf("%d ???\n", year)
	} else {
		fmt.Printf("%d ????\n", year)
	}

	// ??????
	now := time.Now()
	currentYear := now.Year()

	// ???????????
	if isLeapYear(currentYear) {
		fmt.Printf("%d ???\n", currentYear)
	} else {
		fmt.Printf("%d ????\n", currentYear)
	}
}

??????,?????????isLeapYear???,???????????year,????????,???????????????????????????????:??4??????100??,????400???

?main???,???????????(??2020?)?????,??????????????????????time.Now()????????,???now.Year()???????