golang判断当前时间是第几周的方法
Go语言中使用import关键字导入包，包的名字使用双引号（""）包裹起来。
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golang判断当前时间是第几周：
func main() {
l, _ := time.LoadLocation("Asia/Shanghai")
startTime,_ := time.ParseInLocation("2006-01-02", "2018-12-22", l)
endTime,_ := time.ParseInLocation("2006-01-02", "2019-05-17", l)
datas := GroupByWeekDate(startTime, endTime)
for _, d := range datas {
fmt.Println(d)
}
}
//判断时间是当年的第几周
func WeekByDate(t time.Time) string {
yearDay := t.YearDay()
yearFirstDay := t.AddDate(0, 0, -yearDay+1)
firstDayInWeek := int(yearFirstDay.Weekday())
//今年第一周有几天
firstWeekDays := 1
if firstDayInWeek != 0 {
firstWeekDays = 7 - firstDayInWeek + 1
}
var week int
if yearDay <= firstWeekDays {
week = 1
} else {
week = (yearDay-firstWeekDays)/7 + 2
}
return fmt.Sprintf("%d第%d周", t.Year(), week)
}
type WeekDate struct {
WeekTh string
StartTime time.Time
EndTime time.Time
}
// 将开始时间和结束时间分割为周为单位
func GroupByWeekDate(startTime, endTime time.Time) []WeekDate {
weekDate := make([]WeekDate, 0)
diffDuration := endTime.Sub(startTime)
days := int(math.Ceil(float64(diffDuration / (time.Hour * 24))))+1
currentWeekDate := WeekDate{}
currentWeekDate.WeekTh = WeekByDate(endTime)
currentWeekDate.EndTime = endTime
currentWeekDay := int(endTime.Weekday())
if currentWeekDay == 0 {
currentWeekDay = 7
}
currentWeekDate.StartTime = endTime.AddDate(0, 0, -currentWeekDay+1)
nextWeekEndTime := currentWeekDate.StartTime
weekDate = append(weekDate, currentWeekDate)
for i := 0; i < (days-currentWeekDay)/7; i++ {
weekData := WeekDate{}
weekData.EndTime = nextWeekEndTime
weekData.StartTime = nextWeekEndTime.AddDate(0, 0, -7)
weekData.WeekTh = WeekByDate(weekData.StartTime)
nextWeekEndTime = weekData.StartTime
weekDate = append(weekDate, weekData)
}
if lastDays := (days - currentWeekDay) % 7; lastDays > 0 {
lastData := WeekDate{}
lastData.EndTime = nextWeekEndTime
lastData.StartTime = nextWeekEndTime.AddDate(0, 0, - lastDays)
lastData.WeekTh = WeekByDate(lastData.StartTime)
weekDate = append(weekDate, lastData)
}
return weekDate
}结果：
{2019第20周 2019-05-13 00:00:00 +0800 CST 2019-05-17 00:00:00 +0800 CST}
{2019第19周 2019-05-06 00:00:00 +0800 CST 2019-05-13 00:00:00 +0800 CST}
{2019第18周 2019-04-29 00:00:00 +0800 CST 2019-05-06 00:00:00 +0800 CST}
{2019第17周 2019-04-22 00:00:00 +0800 CST 2019-04-29 00:00:00 +0800 CST}
{2019第16周 2019-04-15 00:00:00 +0800 CST 2019-04-22 00:00:00 +0800 CST}
{2019第15周 2019-04-08 00:00:00 +0800 CST 2019-04-15 00:00:00 +0800 CST}
{2019第14周 2019-04-01 00:00:00 +0800 CST 2019-04-08 00:00:00 +0800 CST}
{2019第13周 2019-03-25 00:00:00 +0800 CST 2019-04-01 00:00:00 +0800 CST}
{2019第12周 2019-03-18 00:00:00 +0800 CST 2019-03-25 00:00:00 +0800 CST}
{2019第11周 2019-03-11 00:00:00 +0800 CST 2019-03-18 00:00:00 +0800 CST}
{2019第10周 2019-03-04 00:00:00 +0800 CST 2019-03-11 00:00:00 +0800 CST}
{2019第9周 2019-02-25 00:00:00 +0800 CST 2019-03-04 00:00:00 +0800 CST}
{2019第8周 2019-02-18 00:00:00 +0800 CST 2019-02-25 00:00:00 +0800 CST}
{2019第7周 2019-02-11 00:00:00 +0800 CST 2019-02-18 00:00:00 +0800 CST}
{2019第6周 2019-02-04 00:00:00 +0800 CST 2019-02-11 00:00:00 +0800 CST}
{2019第5周 2019-01-28 00:00:00 +0800 CST 2019-02-04 00:00:00 +0800 CST}
{2019第4周 2019-01-21 00:00:00 +0800 CST 2019-01-28 00:00:00 +0800 CST}
{2019第3周 2019-01-14 00:00:00 +0800 CST 2019-01-21 00:00:00 +0800 CST}
{2019第2周 2019-01-07 00:00:00 +0800 CST 2019-01-14 00:00:00 +0800 CST}
{2018第53周 2018-12-31 00:00:00 +0800 CST 2019-01-07 00:00:00 +0800 CST}
{2018第52周 2018-12-24 00:00:00 +0800 CST 2018-12-31 00:00:00 +0800 CST}
{2018第51周 2018-12-22 00:00:00 +0800 CST 2018-12-24 00:00:00 +0800 CST}以上就是golang获取当前时间是第几周的详细内容，更多请关注创新互联其它相关文章！
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