1、日期格式集合、日期转字符串方法

package utilimport (	"strings"	"time")//日期格式：模仿java中的结构体type DateStyle stringconst (	MM_DD                           = "MM-dd"	YYYYMM                          = "yyyyMM"	YYYY_MM                         = "yyyy-MM"	YYYY_MM_DD                      = "yyyy-MM-dd"	YYYYMMDD                        = "yyyyMMdd"	YYYYMMDDHHMMSS                  = "yyyyMMddHHmmss"	YYYYMMDDHHMM                    = "yyyyMMddHHmm"	YYYYMMDDHH                      = "yyyyMMddHH"	YYMMDDHHMM                      = "yyMMddHHmm"	MM_DD_HH_MM                     = "MM-dd HH:mm"	MM_DD_HH_MM_SS                  = "MM-dd HH:mm:ss"	YYYY_MM_DD_HH_MM                = "yyyy-MM-dd HH:mm"	YYYY_MM_DD_HH_MM_SS             = "yyyy-MM-dd HH:mm:ss"	YYYY_MM_DD_HH_MM_SS_SSS         = "yyyy-MM-dd HH:mm:ss.SSS"	MM_DD_EN                        = "MM/dd"	YYYY_MM_EN                      = "yyyy/MM"	YYYY_MM_DD_EN                   = "yyyy/MM/dd"	MM_DD_HH_MM_EN                  = "MM/dd HH:mm"	MM_DD_HH_MM_SS_EN               = "MM/dd HH:mm:ss"	YYYY_MM_DD_HH_MM_EN             = "yyyy/MM/dd HH:mm"	YYYY_MM_DD_HH_MM_SS_EN          = "yyyy/MM/dd HH:mm:ss"	YYYY_MM_DD_HH_MM_SS_SSS_EN      = "yyyy/MM/dd HH:mm:ss.SSS"	MM_DD_CN                        = "MM月dd日"	YYYY_MM_CN                      = "yyyy年MM月"	YYYY_MM_DD_CN                   = "yyyy年MM月dd日"	MM_DD_HH_MM_CN                  = "MM月dd日 HH:mm"	MM_DD_HH_MM_SS_CN               = "MM月dd日 HH:mm:ss"	YYYY_MM_DD_HH_MM_CN             = "yyyy年MM月dd日 HH:mm"	YYYY_MM_DD_HH_MM_SS_CN          = "yyyy年MM月dd日 HH:mm:ss"	HH_MM                           = "HH:mm"	HH_MM_SS                        = "HH:mm:ss"	HH_MM_SS_MS                     = "HH:mm:ss.SSS")//日期转字符串func FormatDate(date time.Time, dateStyle DateStyle) string {	layout := string(dateStyle)	layout = strings.Replace(layout, "yyyy", "2006", 1)	layout = strings.Replace(layout, "yy", "06", 1)	layout = strings.Replace(layout, "MM", "01", 1)	layout = strings.Replace(layout, "dd", "02", 1)	layout = strings.Replace(layout, "HH", "15", 1)	layout = strings.Replace(layout, "mm", "04", 1)	layout = strings.Replace(layout, "ss", "05", 1)	layout = strings.Replace(layout, "SSS", "000", -1)		return date.Format(layout)}

　　2、测试代码

package mainimport (    "fmt"    "time"    "util")func main() {	fmt.Println(util.FormatDate(time.Now(), util.HH_MM))	fmt.Println(util.FormatDate(time.Now(), util.HH_MM_SS))	fmt.Println(util.FormatDate(time.Now(), util.HH_MM_SS_MS))	fmt.Println(util.FormatDate(time.Now(), util.MM_DD))	fmt.Println(util.FormatDate(time.Now(), util.MM_DD_CN))	fmt.Println(util.FormatDate(time.Now(), util.MM_DD_EN))	fmt.Println(util.FormatDate(time.Now(), util.MM_DD_HH_MM))	fmt.Println(util.FormatDate(time.Now(), util.MM_DD_HH_MM_CN))	fmt.Println(util.FormatDate(time.Now(), util.MM_DD_HH_MM_EN))	fmt.Println(util.FormatDate(time.Now(), util.MM_DD_HH_MM_SS))	fmt.Println(util.FormatDate(time.Now(), util.MM_DD_HH_MM_SS_CN))	fmt.Println(util.FormatDate(time.Now(), util.MM_DD_HH_MM_SS_EN))	fmt.Println(util.FormatDate(time.Now(), util.YYMMDDHHMM))	fmt.Println(util.FormatDate(time.Now(), util.YYYYMM))	fmt.Println(util.FormatDate(time.Now(), util.YYYYMMDD))	fmt.Println(util.FormatDate(time.Now(), util.YYYYMMDDHH))	fmt.Println(util.FormatDate(time.Now(), util.YYYYMMDDHHMM))	fmt.Println(util.FormatDate(time.Now(), util.YYYYMMDDHHMMSS))	fmt.Println(util.FormatDate(time.Now(), util.YYYY_MM))	fmt.Println(util.FormatDate(time.Now(), util.YYYY_MM_CN))	fmt.Println(util.FormatDate(time.Now(), util.YYYY_MM_DD))	fmt.Println(util.FormatDate(time.Now(), util.YYYY_MM_DD_CN))	fmt.Println(util.FormatDate(time.Now(), util.YYYY_MM_DD_EN))	fmt.Println(util.FormatDate(time.Now(), util.YYYY_MM_DD_HH_MM))	fmt.Println(util.FormatDate(time.Now(), util.YYYY_MM_DD_HH_MM_CN))	fmt.Println(util.FormatDate(time.Now(), util.YYYY_MM_DD_HH_MM_EN))	fmt.Println(util.FormatDate(time.Now(), util.YYYY_MM_DD_HH_MM_SS))	fmt.Println(util.FormatDate(time.Now(), util.YYYY_MM_DD_HH_MM_SS_CN))	fmt.Println(util.FormatDate(time.Now(), util.YYYY_MM_DD_HH_MM_SS_EN))	fmt.Println(util.FormatDate(time.Now(), util.YYYY_MM_DD_HH_MM_SS_SSS))	fmt.Println(util.FormatDate(time.Now(), util.YYYY_MM_DD_HH_MM_SS_SSS_EN))	fmt.Println(util.FormatDate(time.Now(), util.YYYY_MM_EN))		fmt.Println(util.FormatDate(time.Now(), "yyyy/MM/dd HH:mm:ss.SSSSSSSSS"))	fmt.Println(util.FormatDate(time.Now(), "2006 01 02 15:04:05.00000000"))}