Golang Time.Month方法代码示例

// FmtDateLong returns the long date representation of 't' for 'vi_VN'
func (vi *vi_VN) FmtDateLong(t time.Time) string {

	b := make([]byte, 0, 32)

	b = append(b, []byte{0x4e, 0x67, 0xc3, 0xa0, 0x79}...)
	b = append(b, []byte{0x20}...)

	if t.Day() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Day()), 10)
	b = append(b, []byte{0x20, 0x74, 0x68, 0xc3, 0xa1, 0x6e, 0x67}...)
	b = append(b, []byte{0x20}...)

	if t.Month() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Month()), 10)

	b = append(b, []byte{0x20, 0x6e, 0xc4, 0x83, 0x6d}...)
	b = append(b, []byte{0x20}...)
	b = strconv.AppendInt(b, int64(t.Year()), 10)

	return string(b)
}

func yearForMonth(mo time.Month, now *time.Time) int {
	year := now.Year()
	if mo+6 <= now.Month() {
		year += 1
	}
	return year
}

// Returns wheter the Timing is active at the specified time
func (rit *RITiming) IsActiveAt(t time.Time) bool {
	// check for years
	if len(rit.Years) > 0 && !rit.Years.Contains(t.Year()) {
		return false
	}
	// check for months
	if len(rit.Months) > 0 && !rit.Months.Contains(t.Month()) {
		return false
	}
	// check for month days
	if len(rit.MonthDays) > 0 && !rit.MonthDays.Contains(t.Day()) {
		return false
	}
	// check for weekdays
	if len(rit.WeekDays) > 0 && !rit.WeekDays.Contains(t.Weekday()) {
		return false
	}
	//log.Print("Time: ", t)

	//log.Print("Left Margin: ", rit.getLeftMargin(t))
	// check for start hour
	if t.Before(rit.getLeftMargin(t)) {
		return false
	}

	//log.Print("Right Margin: ", rit.getRightMargin(t))
	// check for end hour
	if t.After(rit.getRightMargin(t)) {
		return false
	}
	return true
}

// FmtDateFull returns the full date representation of 't' for 'ti_ER'
func (ti *ti_ER) FmtDateFull(t time.Time) string {

	b := make([]byte, 0, 32)

	b = append(b, ti.daysWide[t.Weekday()]...)
	b = append(b, []byte{0xe1, 0x8d, 0xa1, 0x20}...)

	if t.Day() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Day()), 10)
	b = append(b, []byte{0x20}...)
	b = append(b, ti.monthsWide[t.Month()]...)
	b = append(b, []byte{0x20, 0xe1, 0x88, 0x98, 0xe1, 0x8b, 0x93, 0xe1, 0x88, 0x8d, 0xe1, 0x89, 0xb2, 0x20}...)
	b = strconv.AppendInt(b, int64(t.Year()), 10)
	b = append(b, []byte{0x20}...)

	if t.Year() < 0 {
		b = append(b, ti.erasWide[0]...)
	} else {
		b = append(b, ti.erasWide[1]...)
	}

	return string(b)
}

func isStartOfMonth(t time.Time) bool {
	y := t.Year()
	m := t.Month()
	utcLoc, _ := time.LoadLocation("UTC")
	startOfMonth := time.Date(y, m, 1, 0, 0, 0, 0, utcLoc)
	return t.Equal(startOfMonth)
}

func (f FileSystem) DateFilepath(date time.Time) string {
	filename := fmt.Sprintf("%s_%s_%d_%d.md", date.Weekday(), date.Month().String(), date.Day(), date.Year())
	path := path.Join(f.MonthDirectory(date), strings.ToLower(filename))
	f.bootstrap(path)

	return path
}

// Crawl 获取公司每天的报价
func (yahoo YahooFinance) Crawl(_market market.Market, company market.Company, date time.Time) (*market.CompanyDailyQuote, error) {

	// 起止时间
	start := time.Date(date.Year(), date.Month(), date.Day(), 0, 0, 0, 0, date.Location())
	end := start.AddDate(0, 0, 1)

	pattern := "https://finance-yql.media.yahoo.com/v7/finance/chart/%s?period2=%d&period1=%d&interval=1m&indicators=quote&includeTimestamps=true&includePrePost=true&events=div%%7Csplit%%7Cearn&corsDomain=finance.yahoo.com"
	url := fmt.Sprintf(pattern, _market.YahooQueryCode(company), end.Unix(), start.Unix())

	// 查询Yahoo财经接口,返回股票分时数据
	str, err := net.DownloadStringRetry(url, yahoo.RetryCount(), yahoo.RetryInterval())
	if err != nil {
		return nil, err
	}

	// 解析Json
	quote := &YahooQuote{}
	err = json.Unmarshal([]byte(str), &quote)
	if err != nil {
		return nil, err
	}

	// 校验
	err = yahoo.valid(quote)
	if err != nil {
		return nil, err
	}

	// 解析
	return yahoo.parse(_market, company, date, quote)
}

func (self Day) NextAfter(t time.Time) (time.Time, error) {
	desiredDay := int(self)

	if desiredDay == Last {
		if isLastDayInMonth(t) {
			return t.AddDate(0, 0, 1).AddDate(0, 1, -1), nil
		}

		return firstDayOfMonth(t).AddDate(0, 2, -1), nil
	}

	if t.Day() > desiredDay {
		if isLastDayInMonth(t) && desiredDay == First {
			return t.AddDate(0, 0, 1), nil
		}

		return self.NextAfter(t.AddDate(0, 0, 1))
	}

	if t.Day() < desiredDay {
		totalDays := lastDayOfMonth(t).Day()
		if totalDays < desiredDay {
			return self.NextAfter(t.AddDate(0, 1, 0))
		}

		return time.Date(t.Year(), t.Month(), desiredDay, 0, 0, 0, 0, t.Location()), nil
	}

	totalDaysNextMonth := lastDayOfMonth(lastDayOfMonth(t).AddDate(0, 0, 1)).Day()
	if totalDaysNextMonth < desiredDay {
		return self.NextAfter(t.AddDate(0, 2, -1))
	}

	return t.AddDate(0, 1, 0), nil
}

func yqlHist(symbols []string, start *time.Time, end *time.Time) (map[string]fquery.Hist, error) {
	if start == nil {
		t := time.Date(2000, time.January, 1, 0, 0, 0, 0, time.UTC)
		start = &t
	}
	startq := fmt.Sprintf(` AND startDate = "%v-%v-%v"`,
		start.Year(), int(start.Month()), start.Day())

	if end == nil {
		t := time.Now()
		end = &t
	}
	endq := fmt.Sprintf(` AND endDate = "%v-%v-%v"`,
		end.Year(), int(end.Month()), end.Day())

	queryGen := func(symbol string) string {
		return fmt.Sprintf(
			`SELECT * FROM yahoo.finance.historicaldata WHERE symbol="%s"`,
			symbol) + startq + endq
	}

	makeMarshal := func() interface{} {
		var resp YqlJsonHistResponse
		return &resp
	}

	res := make(map[string]fquery.Hist)

	parallelFetch(queryGen, makeMarshal, addHistToMap(res), symbols)
	return res, nil
}

// FmtDateShort returns the short date representation of 't' for 'bg_BG'
func (bg *bg_BG) FmtDateShort(t time.Time) string {

	b := make([]byte, 0, 32)

	b = strconv.AppendInt(b, int64(t.Day()), 10)
	b = append(b, []byte{0x2e}...)

	if t.Month() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Month()), 10)

	b = append(b, []byte{0x2e}...)

	if t.Year() > 9 {
		b = append(b, strconv.Itoa(t.Year())[2:]...)
	} else {
		b = append(b, strconv.Itoa(t.Year())[1:]...)
	}

	b = append(b, []byte{0x20, 0xd0, 0xb3}...)
	b = append(b, []byte{0x2e}...)

	return string(b)
}

func (expr *Expression) nextMonth(t time.Time) time.Time {
	// Find index at which item in list is greater or equal to
	// candidate month
	i := sort.SearchInts(expr.monthList, int(t.Month())+1)
	if i == len(expr.monthList) {
		return expr.nextYear(t)
	}
	// Month changed, need to recalculate actual days of month
	expr.actualDaysOfMonthList = expr.calculateActualDaysOfMonth(t.Year(), expr.monthList[i])
	if len(expr.actualDaysOfMonthList) == 0 {
		return expr.nextMonth(time.Date(
			t.Year(),
			time.Month(expr.monthList[i]),
			1,
			expr.hourList[0],
			expr.minuteList[0],
			expr.secondList[0],
			0,
			t.Location()))
	}

	return time.Date(
		t.Year(),
		time.Month(expr.monthList[i]),
		expr.actualDaysOfMonthList[0],
		expr.hourList[0],
		expr.minuteList[0],
		expr.secondList[0],
		0,
		t.Location())
}

func Strftime(format string, t time.Time) (timestamp string, err error) {
	c_format := C.CString(format)
	defer func() { C.free(unsafe.Pointer(c_format)) }()

	tz, offset := t.Zone()
	c_tz := C.CString(tz)
	defer func() { C.free(unsafe.Pointer(c_tz)) }()

	c_time := C.struct_tm{
		tm_year:   C.int(t.Year() - 1900),
		tm_mon:    C.int(t.Month() - 1),
		tm_mday:   C.int(t.Day()),
		tm_hour:   C.int(t.Hour()),
		tm_min:    C.int(t.Minute()),
		tm_sec:    C.int(t.Second()),
		tm_gmtoff: C.long(offset),
		tm_zone:   c_tz,
	}

	c_timestamp, trr := C.ftime(c_format, &c_time)
	defer func() { C.free(unsafe.Pointer(c_timestamp)) }()

	timestamp = C.GoString(c_timestamp)
	if trr == nil {
		timestamp = C.GoString(c_timestamp)
	} else {
		err = fmt.Errorf("%s - %s", trr, t)
	}
	return
}

func ParseTime(str string) (time.Time, error) {
	now := time.Now()
	t := time.Time{}
	var err error

	isShortTime := false
	for _, tfmt := range inputTimeFormats {
		t, err = time.ParseInLocation(tfmt, str, time.Local)
		if err == nil {
			if tfmt == "03:04 pm" || tfmt == "3:04 pm" || tfmt == "15:04" {
				isShortTime = true
			}
			break
		}
		// fmt.Printf("%s \n", tfmt)
	}

	// if no year or month or day was given fill those in with todays date
	if isShortTime {
		t = time.Date(now.Year(), now.Month(), now.Day(), t.Hour(), t.Minute(), t.Second(), 0, time.Local)
	} else if t.Year() == 0 { // no year was specified
		t = time.Date(now.Year(), t.Month(), t.Day(), t.Hour(), t.Minute(), t.Second(), 0, time.Local)
	}

	return t, err
}

func createDate(str string, now time.Time) time.Time {
	arr := strings.Split(str, "-")
	year, _ := strconv.Atoi(arr[0])
	month, _ := strconv.Atoi(arr[1])
	day, _ := strconv.Atoi(arr[2])
	return now.AddDate(year-now.Year(), month-int(now.Month()), day-now.Day())
}

// WorkdayN reports the day of the month that corresponds to the nth workday
// for the given year and month.
//
// The value of n affects the direction of counting:
//   n > 0: counting begins at the first day of the month.
//   n == 0: the result is always 0.
//   n < 0: counting begins at the end of the month.
func (c *Calendar) WorkdayN(year int, month time.Month, n int) int {
	var date time.Time
	var add int
	if n == 0 {
		return 0
	}

	if n > 0 {
		date = time.Date(year, month, 1, 12, 0, 0, 0, time.UTC)
		add = 1
	} else {
		date = time.Date(year, month+1, 1, 12, 0, 0, 0, time.UTC).AddDate(0, 0, -1)
		add = -1
		n = -n
	}

	ndays := 0
	for ; month == date.Month(); date = date.AddDate(0, 0, add) {
		if c.IsWorkday(date) {
			ndays++
			if ndays == n {
				return date.Day()
			}
		}
	}
	return 0
}