golang timestamp
package mmtime
import (
"fmt"
"strconv"
"time"
)
// FMT_TYPE_NOMAL
const (
DATE_TIME_FMT = "2006-01-02 15:04:05"
DATE_FMT = "2006-01-02"
TIME_FMT = "15:04:05"
DATE_TIME_FMT_CN = "2006年01月02日 15时04分05秒"
DATE_FMT_CN = "2006年01月02日"
TIME_FMT_CN = "15时04分05秒"
)
const SecondInNano = 1000 * 1000 * 1000
//return 1441006057 in sec
func GetTimestamp() int64 {
return time.Now().Unix()
}
//return 1441006057 in sec
func GetTimestampString() string {
return strconv.FormatInt(GetTimestamp(), 10)
}
// return 1441007112776 in millisecond
func GetTimestampInMilli() int64 {
return int64(time.Now().UnixNano() / (1000 * 1000)) // ms
}
// return 1441007112776 in millisecond
func GetTimestampInMilliString() string {
return strconv.FormatInt(GetTimestampInMilli(), 10)
}
//微秒
func GetTimestampInMicro() int64 {
return int64(time.Now().UnixNano() / 1000) // ms
}
// 微秒
func GetTimestampInMicroString() {
return strconv.FormatInt(GetTimestampInMicro(), 10)
}
//format
func GetCurrentTimeFormat(format string) string {
return GetTimeFormat(GetTimestamp(), format)
}
//
func GetTimeFormat(second int64, format string) string {
return time.Unix(second, 0).Format(format)
}
// Timing the cost of function call, unix nano was returned
func Elapse(f func()) int64 {
now := time.Now().UnixNano()
f()
return time.Now().UnixNano() - now
}
// Timing the cost of function call, unix nano was returned
func ElapseString(f func()) string {
return strconv.FormatInt(Elapse(f), 10)
}
// GetMonthDays return days of the month/year
func GetMonthDays(year, month int) int {
switch month {
case 1, 3, 5, 7, 8, 10, 12:
return 31
case 4, 6, 9, 11:
return 30
case 2:
if IsLeapYear(year) {
return 29
}
return 28
default:
panic(fmt.Sprintf("Illegal month:%d", month))
}
}
// IsLeapYear check whether a year is leay
func IsLeapYear(year int) bool {
if year%100 == 0 {
return year%400 == 0
}
return year%4 == 0
}