forked from golang/hotime
100 lines
2.5 KiB
Go
100 lines
2.5 KiB
Go
package xtime
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import (
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"time"
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)
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var daysBefore = [...]int32{
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0,
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31,
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31 + 28,
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31 + 28 + 31,
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31 + 28 + 31 + 30,
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31 + 28 + 31 + 30 + 31,
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31 + 28 + 31 + 30 + 31 + 30,
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31 + 28 + 31 + 30 + 31 + 30 + 31,
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31 + 28 + 31 + 30 + 31 + 30 + 31 + 31,
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31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30,
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31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31,
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31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30,
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31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31,
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}
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func MonthDays(m time.Month, year int) int {
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if m == time.February && isLeap(year) {
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return 29
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}
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return int(daysBefore[m] - daysBefore[m-1])
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}
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func isLeap(year int) bool {
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return year%4 == 0 && (year%100 != 0 || year%400 == 0)
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}
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// 获取最近 7天 日期
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func GetRecentSevenDay() (sevenDays []string) {
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now := time.Now()
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nowDay := time.Date(now.Year(), now.Month(), now.Day()-7, 0, 0, 0, 0, time.Local)
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for i := 0; i < 7; i++ {
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date := nowDay.AddDate(0, 0, i)
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sevenDays = append(sevenDays, date.Format(DateLayout))
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}
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return sevenDays
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}
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// 获取最近 30天 日期
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func GetRecentThirtyDay() (thirtyDays []string) {
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now := time.Now()
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nowDay := time.Date(now.Year(), now.Month(), now.Day()-30, 0, 0, 0, 0, time.Local)
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for i := 0; i < 30; i++ {
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date := nowDay.AddDate(0, 0, i)
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thirtyDays = append(thirtyDays, date.Format(DateLayout))
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}
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return thirtyDays
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}
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// 获取本周 7天 日期
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func GetCurWeekDays() (curWeekDays []string) {
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now := time.Now()
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offset := int(time.Monday - now.Weekday())
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if offset > 0 {
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offset = -6
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}
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weekStartDate := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, time.Local).AddDate(0, 0, offset)
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for i := 0; i < 7; i++ {
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date := weekStartDate.AddDate(0, 0, i)
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curWeekDays = append(curWeekDays, date.Format(DateLayout))
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}
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return
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}
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// 获取本月 日期
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func GetCurMonthDays() (curMonthDays []string) {
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now := time.Now()
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year := now.Year()
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month := now.Month()
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days := MonthDays(month, year)
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monthFirstDay := time.Date(year, month, 01, 0, 0, 0, 0, time.Local)
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for i := 0; i < days; i++ {
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date := monthFirstDay.AddDate(0, 0, i)
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curMonthDays = append(curMonthDays, date.Format(DateLayout))
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}
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return curMonthDays
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}
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// 获取上一个月 日期
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func GetLastMonthDays() (monthDays []string) {
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now := time.Now()
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year := now.Year()
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month := now.Month()
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days := MonthDays(month-1, year)
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monthFirstDay := time.Date(year, month-1, 01, 0, 0, 0, 0, time.Local)
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for i := 0; i < days; i++ {
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date := monthFirstDay.AddDate(0, 0, i)
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monthDays = append(monthDays, date.Format(DateLayout))
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}
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return monthDays
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}
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