golang判断当前是否是周末

可以使用time包中的Weekday函数来判断当前日期是否是周末。Weekday函数返回值为星期几，Sunday为0，Saturday为6。

示例代码：

package main

import (
	"fmt"
	"time"
)

func main() {
	today := time.Now().Weekday()
	if today == time.Saturday || today == time.Sunday {
		fmt.Println("Today is weekend.")
	} else {
		fmt.Println("Today is not weekend.")
	}
}

输出结果：

Today is not weekend.