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53 lines
1.2 KiB
Go
53 lines
1.2 KiB
Go
3 months ago
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/**
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* @Author Puzzle
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* @Date 2022/5/20 12:54 下午
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**/
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package stime
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import "time"
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func NowWeekDay() string {
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var weekday = [7]string{"七", "一", "二", "三", "四", "五", "六"}
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week := int(time.Now().Weekday())
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return weekday[week]
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}
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// 获取按年算的周数
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func GetYearWeek(t *time.Time) int {
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yearDay := t.YearDay()
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yearFirstDay := t.AddDate(0, 0, -yearDay+1)
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firstDayInWeek := int(yearFirstDay.Weekday())
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//今年第一周有几天
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firstWeekDays := 1
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if firstDayInWeek != 0 {
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firstWeekDays = 7 - firstDayInWeek + 1
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}
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var week int
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if yearDay <= firstWeekDays {
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week = 1
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} else {
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week = (yearDay-firstWeekDays)/7 + 2
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}
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return week
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}
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// GetWeekDate 获取基准时间范围最最近的某个星期时间
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//
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// param baseOn: 基准时间
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// param weekNum: 中国星期数 1~7
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// return *time.Time
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func GetWeekDate(baseOn time.Time, weekNum int) *time.Time {
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if baseOn.IsZero() || (weekNum <= 0 || weekNum > 7) {
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return nil
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}
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baseDate := time.Date(baseOn.Year(), baseOn.Month(), baseOn.Day(), 0, 0, 0, 0, Loc.Shanghai())
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var (
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w = int(baseOn.Weekday())
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weekDate time.Time
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)
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weekDate = baseDate.AddDate(0, 0, weekNum-w)
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return &weekDate
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}
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