golang 通过ISOWeek翻转得到周的日期时间

最新推荐文章于 2024-11-20 21:03:11 发布

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#golang #timezone #ISOWeek

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本文介绍如何在Golang中使用ISOWeek功能，详细解析如何将日期时间转换为对应周的开始和结束日期，同时探讨时区处理在这一过程中的应用。

func firstDayOfISOWeek(year int, week int, timezone *time.Location) time.Time {
    date := time.Date(year, 0, 0, 0, 0, 0, 0, timezone)
    isoYear, isoWeek := date.ISOWeek()
    for date.Weekday() != time.Monday { // iterate back to Monday
        date = date.AddDate(0, 0, -1)
        isoYear, isoWeek = date.ISOWeek()
    }
    for isoYear < year { // iterate forward to the first day of the first week
        date = date.AddDate(0, 0, 1)
        isoYear, isoWeek = date.ISOWeek()
    }
    for isoWeek < week { // iterate forward to the first day of the given week
        date = date.AddDate(0, 0, 1)
        isoYear, isoWeek = date.ISOWeek()
    }
    return date
}