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- package utils
- import (
- "bufio"
- "crypto/md5"
- "crypto/sha1"
- "encoding/base64"
- "encoding/hex"
- "encoding/json"
- "errors"
- "fmt"
- "github.com/shopspring/decimal"
- "image"
- "image/png"
- "io"
- "math"
- "math/rand"
- "net"
- "net/http"
- "os"
- "os/exec"
- "path"
- "regexp"
- "runtime"
- "strconv"
- "strings"
- "time"
- "unicode"
- )
- // 随机数种子
- var rnd = rand.New(rand.NewSource(time.Now().UnixNano()))
- func GetRandString(size int) string {
- allLetterDigit := []string{"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "!", "@", "#", "$", "%", "^", "&", "*"}
- randomSb := ""
- digitSize := len(allLetterDigit)
- for i := 0; i < size; i++ {
- randomSb += allLetterDigit[rnd.Intn(digitSize)]
- }
- return randomSb
- }
- func GetRandStringNoSpecialChar(size int) string {
- allLetterDigit := []string{"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"}
- randomSb := ""
- digitSize := len(allLetterDigit)
- for i := 0; i < size; i++ {
- randomSb += allLetterDigit[rnd.Intn(digitSize)]
- }
- return randomSb
- }
- func StringsToJSON(str string) string {
- rs := []rune(str)
- jsons := ""
- for _, r := range rs {
- rint := int(r)
- if rint < 128 {
- jsons += string(r)
- } else {
- jsons += "\\u" + strconv.FormatInt(int64(rint), 16) // json
- }
- }
- return jsons
- }
- // 序列化
- func ToString(v interface{}) string {
- data, _ := json.Marshal(v)
- return string(data)
- }
- // md5加密
- func MD5(data string) string {
- m := md5.Sum([]byte(data))
- return hex.EncodeToString(m[:])
- }
- // 获取数字随机字符
- func GetRandDigit(n int) string {
- return fmt.Sprintf("%0"+strconv.Itoa(n)+"d", rnd.Intn(int(math.Pow10(n))))
- }
- // 获取随机数
- func GetRandNumber(n int) int {
- return rnd.Intn(n)
- }
- func GetRandInt(min, max int) int {
- if min >= max || min == 0 || max == 0 {
- return max
- }
- return rand.Intn(max-min) + min
- }
- func GetToday(format string) string {
- today := time.Now().Format(format)
- return today
- }
- // 获取今天剩余秒数
- func GetTodayLastSecond() time.Duration {
- today := GetToday(FormatDate) + " 23:59:59"
- end, _ := time.ParseInLocation(FormatDateTime, today, time.Local)
- return time.Duration(end.Unix()-time.Now().Local().Unix()) * time.Second
- }
- // 处理出生日期函数
- func GetBrithDate(idcard string) string {
- l := len(idcard)
- var s string
- if l == 15 {
- s = "19" + idcard[6:8] + "-" + idcard[8:10] + "-" + idcard[10:12]
- return s
- }
- if l == 18 {
- s = idcard[6:10] + "-" + idcard[10:12] + "-" + idcard[12:14]
- return s
- }
- return GetToday(FormatDate)
- }
- // 处理性别
- func WhichSexByIdcard(idcard string) string {
- var sexs = [2]string{"女", "男"}
- length := len(idcard)
- if length == 18 {
- sex, _ := strconv.Atoi(string(idcard[16]))
- return sexs[sex%2]
- } else if length == 15 {
- sex, _ := strconv.Atoi(string(idcard[14]))
- return sexs[sex%2]
- }
- return "男"
- }
- // 截取小数点后几位
- func SubFloatToString(f float64, m int) string {
- n := strconv.FormatFloat(f, 'f', -1, 64)
- if n == "" {
- return ""
- }
- if m >= len(n) {
- return n
- }
- newn := strings.Split(n, ".")
- if m == 0 {
- return newn[0]
- }
- if len(newn) < 2 || m >= len(newn[1]) {
- return n
- }
- return newn[0] + "." + newn[1][:m]
- }
- // 截取小数点后几位
- func SubFloatToFloat(f float64, m int) float64 {
- newn := SubFloatToString(f, m)
- newf, _ := strconv.ParseFloat(newn, 64)
- return newf
- }
- // 截取小数点后几位
- func SubFloatToFloatStr(f float64, m int) string {
- newn := SubFloatToString(f, m)
- return newn
- }
- // 获取相差时间-年
- func GetYearDiffer(start_time, end_time string) int {
- t1, _ := time.ParseInLocation("2006-01-02", start_time, time.Local)
- t2, _ := time.ParseInLocation("2006-01-02", end_time, time.Local)
- age := t2.Year() - t1.Year()
- if t2.Month() < t1.Month() || (t2.Month() == t1.Month() && t2.Day() < t1.Day()) {
- age--
- }
- return age
- }
- // 获取相差时间-秒
- func GetSecondDifferByTime(start_time, end_time time.Time) int64 {
- diff := end_time.Unix() - start_time.Unix()
- return diff
- }
- func FixFloat(f float64, m int) float64 {
- newn := SubFloatToString(f+0.00000001, m)
- newf, _ := strconv.ParseFloat(newn, 64)
- return newf
- }
- // 将字符串数组转化为逗号分割的字符串形式 ["str1","str2","str3"] >>> "str1,str2,str3"
- func StrListToString(strList []string) (str string) {
- if len(strList) > 0 {
- for k, v := range strList {
- if k == 0 {
- str = v
- } else {
- str = str + "," + v
- }
- }
- return
- }
- return ""
- }
- // Token
- func GetToken() string {
- randStr := GetRandString(64)
- token := MD5(randStr + Md5Key)
- tokenLen := 64 - len(token)
- return strings.ToUpper(token + GetRandString(tokenLen))
- }
- // 数据没有记录
- func ErrNoRow() string {
- return "<QuerySeter> no row found"
- }
- // 判断文件是否存在
- func FileIsExist(filePath string) bool {
- _, err := os.Stat(filePath)
- return err == nil || os.IsExist(err)
- }
- // 获取图片扩展名
- func GetImgExt(file string) (ext string, err error) {
- var headerByte []byte
- headerByte = make([]byte, 8)
- fd, err := os.Open(file)
- if err != nil {
- return "", err
- }
- defer fd.Close()
- _, err = fd.Read(headerByte)
- if err != nil {
- return "", err
- }
- xStr := fmt.Sprintf("%x", headerByte)
- switch {
- case xStr == "89504e470d0a1a0a":
- ext = ".png"
- case xStr == "0000010001002020":
- ext = ".ico"
- case xStr == "0000020001002020":
- ext = ".cur"
- case xStr[:12] == "474946383961" || xStr[:12] == "474946383761":
- ext = ".gif"
- case xStr[:10] == "0000020000" || xStr[:10] == "0000100000":
- ext = ".tga"
- case xStr[:8] == "464f524d":
- ext = ".iff"
- case xStr[:8] == "52494646":
- ext = ".ani"
- case xStr[:4] == "4d4d" || xStr[:4] == "4949":
- ext = ".tiff"
- case xStr[:4] == "424d":
- ext = ".bmp"
- case xStr[:4] == "ffd8":
- ext = ".jpg"
- case xStr[:2] == "0a":
- ext = ".pcx"
- default:
- ext = ""
- }
- return ext, nil
- }
- // 保存图片
- func SaveImage(path string, img image.Image) (err error) {
- //需要保持的文件
- imgfile, err := os.Create(path)
- defer imgfile.Close()
- // 以PNG格式保存文件
- err = png.Encode(imgfile, img)
- return err
- }
- // 下载图片
- func DownloadImage(imgUrl string) (filePath string, err error) {
- imgPath := "./static/imgs/"
- fileName := path.Base(imgUrl)
- res, err := http.Get(imgUrl)
- if err != nil {
- fmt.Println("A error occurred!")
- return
- }
- defer res.Body.Close()
- // 获得get请求响应的reader对象
- reader := bufio.NewReaderSize(res.Body, 32*1024)
- filePath = imgPath + fileName
- file, err := os.Create(filePath)
- if err != nil {
- return
- }
- // 获得文件的writer对象
- writer := bufio.NewWriter(file)
- written, _ := io.Copy(writer, reader)
- fmt.Printf("Total length: %d \n", written)
- return
- }
- // 保存base64数据为文件
- func SaveBase64ToFile(content, path string) error {
- data, err := base64.StdEncoding.DecodeString(content)
- if err != nil {
- return err
- }
- f, err := os.Create(path)
- defer f.Close()
- if err != nil {
- return err
- }
- f.Write(data)
- return nil
- }
- func SaveBase64ToFileBySeek(content, path string) (err error) {
- data, err := base64.StdEncoding.DecodeString(content)
- exist, err := PathExists(path)
- if err != nil {
- return
- }
- if !exist {
- f, err := os.Create(path)
- if err != nil {
- return err
- }
- n, _ := f.Seek(0, 2)
- // 从末尾的偏移量开始写入内容
- _, err = f.WriteAt([]byte(data), n)
- defer f.Close()
- } else {
- f, err := os.OpenFile(path, os.O_WRONLY, 0644)
- if err != nil {
- return err
- }
- n, _ := f.Seek(0, 2)
- // 从末尾的偏移量开始写入内容
- _, err = f.WriteAt([]byte(data), n)
- defer f.Close()
- }
- return nil
- }
- func PathExists(path string) (bool, error) {
- _, err := os.Stat(path)
- if err == nil {
- return true, nil
- }
- if os.IsNotExist(err) {
- return false, nil
- }
- return false, err
- }
- func StartIndex(page, pagesize int) int {
- if page > 1 {
- return (page - 1) * pagesize
- }
- return 0
- }
- func PageCount(count, pagesize int) int {
- if count%pagesize > 0 {
- return count/pagesize + 1
- } else {
- return count / pagesize
- }
- }
- func TrimHtml(src string) string {
- //将HTML标签全转换成小写
- re, _ := regexp.Compile("\\<[\\S\\s]+?\\>")
- src = re.ReplaceAllStringFunc(src, strings.ToLower)
- re, _ = regexp.Compile("\\<img[\\S\\s]+?\\>")
- src = re.ReplaceAllString(src, "[图片]")
- re, _ = regexp.Compile("class[\\S\\s]+?>")
- src = re.ReplaceAllString(src, "")
- re, _ = regexp.Compile("\\<[\\S\\s]+?\\>")
- src = re.ReplaceAllString(src, "")
- return strings.TrimSpace(src)
- }
- //1556164246 -> 2019-04-25 03:50:46 +0000
- //timestamp
- func TimeToTimestamp() {
- fmt.Println(time.Unix(1556164246, 0).Format("2006-01-02 15:04:05"))
- }
- func ToUnicode(text string) string {
- textQuoted := strconv.QuoteToASCII(text)
- textUnquoted := textQuoted[1 : len(textQuoted)-1]
- return textUnquoted
- }
- func VersionToInt(version string) int {
- version = strings.Replace(version, ".", "", -1)
- n, _ := strconv.Atoi(version)
- return n
- }
- func IsCheckInList(list []int, s int) bool {
- for _, v := range list {
- if v == s {
- return true
- }
- }
- return false
- }
- func round(num float64) int {
- return int(num + math.Copysign(0.5, num))
- }
- func toFixed(num float64, precision int) float64 {
- output := math.Pow(10, float64(precision))
- return float64(round(num*output)) / output
- }
- // GetWilsonScore returns Wilson Score
- func GetWilsonScore(p, n float64) float64 {
- if p == 0 && n == 0 {
- return 0
- }
- return toFixed(((p+1.9208)/(p+n)-1.96*math.Sqrt(p*n/(p+n)+0.9604)/(p+n))/(1+3.8416/(p+n)), 2)
- }
- // 将中文数字转化成数字,比如 第三百四十五章,返回第345章 不支持一亿及以上
- func ChangeWordsToNum(str string) (numStr string) {
- words := ([]rune)(str)
- num := 0
- n := 0
- for i := 0; i < len(words); i++ {
- word := string(words[i : i+1])
- switch word {
- case "万":
- if n == 0 {
- n = 1
- }
- n = n * 10000
- num = num*10000 + n
- n = 0
- case "千":
- if n == 0 {
- n = 1
- }
- n = n * 1000
- num += n
- n = 0
- case "百":
- if n == 0 {
- n = 1
- }
- n = n * 100
- num += n
- n = 0
- case "十":
- if n == 0 {
- n = 1
- }
- n = n * 10
- num += n
- n = 0
- case "一":
- n += 1
- case "二":
- n += 2
- case "三":
- n += 3
- case "四":
- n += 4
- case "五":
- n += 5
- case "六":
- n += 6
- case "七":
- n += 7
- case "八":
- n += 8
- case "九":
- n += 9
- case "零":
- default:
- if n > 0 {
- num += n
- n = 0
- }
- if num == 0 {
- numStr += word
- } else {
- numStr += strconv.Itoa(num) + word
- num = 0
- }
- }
- }
- if n > 0 {
- num += n
- n = 0
- }
- if num != 0 {
- numStr += strconv.Itoa(num)
- }
- return
- }
- func Sha1(data string) string {
- sha1 := sha1.New()
- sha1.Write([]byte(data))
- return hex.EncodeToString(sha1.Sum([]byte("")))
- }
- func GetVideoPlaySeconds(videoPath string) (playSeconds float64, err error) {
- cmd := `ffmpeg -i ` + videoPath + ` 2>&1 | grep 'Duration' | cut -d ' ' -f 4 | sed s/,//`
- out, err := exec.Command("bash", "-c", cmd).Output()
- if err != nil {
- return
- }
- outTimes := string(out)
- fmt.Println("outTimes:", outTimes)
- if outTimes != "" {
- timeArr := strings.Split(outTimes, ":")
- h := timeArr[0]
- m := timeArr[1]
- s := timeArr[2]
- hInt, err := strconv.Atoi(h)
- if err != nil {
- return playSeconds, err
- }
- mInt, err := strconv.Atoi(m)
- if err != nil {
- return playSeconds, err
- }
- s = strings.Trim(s, " ")
- s = strings.Trim(s, "\n")
- sInt, err := strconv.ParseFloat(s, 64)
- if err != nil {
- return playSeconds, err
- }
- playSeconds = float64(hInt)*3600 + float64(mInt)*60 + float64(sInt)
- }
- return
- }
- func GetMaxTradeCode(tradeCode string) (maxTradeCode string, err error) {
- tradeCode = strings.Replace(tradeCode, "W", "", -1)
- tradeCode = strings.Trim(tradeCode, " ")
- tradeCodeInt, err := strconv.Atoi(tradeCode)
- if err != nil {
- return
- }
- tradeCodeInt = tradeCodeInt + 1
- maxTradeCode = fmt.Sprintf("W%06d", tradeCodeInt)
- return
- }
- // excel日期字段格式化 yyyy-mm-dd
- func ConvertToFormatDay(excelDaysString string) string {
- // 2006-01-02 距离 1900-01-01的天数
- baseDiffDay := 38719 //在网上工具计算的天数需要加2天,什么原因没弄清楚
- curDiffDay := excelDaysString
- b, _ := strconv.Atoi(curDiffDay)
- // 获取excel的日期距离2006-01-02的天数
- realDiffDay := b - baseDiffDay
- //fmt.Println("realDiffDay:",realDiffDay)
- // 距离2006-01-02 秒数
- realDiffSecond := realDiffDay * 24 * 3600
- //fmt.Println("realDiffSecond:",realDiffSecond)
- // 2006-01-02 15:04:05距离1970-01-01 08:00:00的秒数 网上工具可查出
- baseOriginSecond := 1136185445
- resultTime := time.Unix(int64(baseOriginSecond+realDiffSecond), 0).Format("2006-01-02")
- return resultTime
- }
- func CheckPwd(pwd string) bool {
- compile := `([0-9a-z]+){6,12}|(a-z0-9]+){6,12}`
- reg := regexp.MustCompile(compile)
- flag := reg.MatchString(pwd)
- return flag
- }
- func GetMonthStartAndEnd(myYear string, myMonth string) (startDate, endDate string) {
- // 数字月份必须前置补零
- if len(myMonth) == 1 {
- myMonth = "0" + myMonth
- }
- yInt, _ := strconv.Atoi(myYear)
- timeLayout := "2006-01-02 15:04:05"
- loc, _ := time.LoadLocation("Local")
- theTime, _ := time.ParseInLocation(timeLayout, myYear+"-"+myMonth+"-01 00:00:00", loc)
- newMonth := theTime.Month()
- t1 := time.Date(yInt, newMonth, 1, 0, 0, 0, 0, time.Local).Format("2006-01-02")
- t2 := time.Date(yInt, newMonth+1, 0, 0, 0, 0, 0, time.Local).Format("2006-01-02")
- return t1, t2
- }
- // 移除字符串中的空格
- func TrimStr(str string) (str2 string) {
- if str == "" {
- return str
- }
- return strings.Replace(str, " ", "", -1)
- }
- // 字符串转换为time
- func StrTimeToTime(strTime string) time.Time {
- timeLayout := "2006-01-02 15:04:05" //转化所需模板
- loc, _ := time.LoadLocation("Local") //重要:获取时区
- resultTime, _ := time.ParseInLocation(timeLayout, strTime, loc)
- return resultTime
- }
- // 字符串类型时间转周几
- func StrDateTimeToWeek(strTime string) string {
- var WeekDayMap = map[string]string{
- "Monday": "周一",
- "Tuesday": "周二",
- "Wednesday": "周三",
- "Thursday": "周四",
- "Friday": "周五",
- "Saturday": "周六",
- "Sunday": "周日",
- }
- var ctime = StrTimeToTime(strTime).Format("2006-01-02")
- startday, _ := time.ParseInLocation("2006-01-02", ctime, time.Local)
- staweek_int := startday.Weekday().String()
- return WeekDayMap[staweek_int]
- }
- // 时间格式转年月日字符串
- func TimeToStrYmd(time2 time.Time) string {
- var Ymd string
- year := time2.Year()
- month := time2.Format("1")
- day1 := time.Now().Day()
- Ymd = strconv.Itoa(year) + "年" + month + "月" + strconv.Itoa(day1) + "日"
- return Ymd
- }
- // 时间格式去掉时分秒
- func TimeRemoveHms(strTime string) string {
- var Ymd string
- var resultTime = StrTimeToTime(strTime)
- year := resultTime.Year()
- month := resultTime.Format("01")
- day1 := resultTime.Day()
- Ymd = strconv.Itoa(year) + "." + month + "." + strconv.Itoa(day1)
- return Ymd
- }
- // 时间格式去掉时分秒
- func TimeRemoveHms2(strTime string) string {
- var Ymd string
- var resultTime = StrTimeToTime(strTime)
- year := resultTime.Year()
- month := resultTime.Format("01")
- day1 := resultTime.Day()
- Ymd = strconv.Itoa(year) + "-" + month + "-" + strconv.Itoa(day1)
- return Ymd
- }
- // 文章上一次编辑时间
- func ArticleLastTime(strTime string) string {
- var newTime string
- stamp, _ := time.ParseInLocation("2006-01-02 15:04:05", strTime, time.Local)
- diffTime := time.Now().Unix() - stamp.Unix()
- if diffTime <= 60 {
- newTime = "当前"
- } else if diffTime < 60*60 {
- newTime = strconv.FormatInt(diffTime/60, 10) + "分钟前"
- } else if diffTime < 24*60*60 {
- newTime = strconv.FormatInt(diffTime/(60*60), 10) + "小时前"
- } else if diffTime < 30*24*60*60 {
- newTime = strconv.FormatInt(diffTime/(24*60*60), 10) + "天前"
- } else if diffTime < 12*30*24*60*60 {
- newTime = strconv.FormatInt(diffTime/(30*24*60*60), 10) + "月前"
- } else {
- newTime = "1年前"
- }
- return newTime
- }
- // 人民币小写转大写
- func ConvertNumToCny(num float64) (str string, err error) {
- strNum := strconv.FormatFloat(num*100, 'f', 0, 64)
- sliceUnit := []string{"仟", "佰", "拾", "亿", "仟", "佰", "拾", "万", "仟", "佰", "拾", "元", "角", "分"}
- // log.Println(sliceUnit[:len(sliceUnit)-2])
- s := sliceUnit[len(sliceUnit)-len(strNum):]
- upperDigitUnit := map[string]string{"0": "零", "1": "壹", "2": "贰", "3": "叁", "4": "肆", "5": "伍", "6": "陆", "7": "柒", "8": "捌", "9": "玖"}
- for k, v := range strNum[:] {
- str = str + upperDigitUnit[string(v)] + s[k]
- }
- reg, err := regexp.Compile(`零角零分$`)
- str = reg.ReplaceAllString(str, "整")
- reg, err = regexp.Compile(`零角`)
- str = reg.ReplaceAllString(str, "零")
- reg, err = regexp.Compile(`零分$`)
- str = reg.ReplaceAllString(str, "整")
- reg, err = regexp.Compile(`零[仟佰拾]`)
- str = reg.ReplaceAllString(str, "零")
- reg, err = regexp.Compile(`零{2,}`)
- str = reg.ReplaceAllString(str, "零")
- reg, err = regexp.Compile(`零亿`)
- str = reg.ReplaceAllString(str, "亿")
- reg, err = regexp.Compile(`零万`)
- str = reg.ReplaceAllString(str, "万")
- reg, err = regexp.Compile(`零*元`)
- str = reg.ReplaceAllString(str, "元")
- reg, err = regexp.Compile(`亿零{0, 3}万`)
- str = reg.ReplaceAllString(str, "^元")
- reg, err = regexp.Compile(`零元`)
- str = reg.ReplaceAllString(str, "零")
- return
- }
- // GetNowWeekMonday 获取本周周一的时间
- func GetNowWeekMonday() time.Time {
- offset := int(time.Monday - time.Now().Weekday())
- if offset == 1 { //正好是周日,但是按照中国人的理解,周日是一周最后一天,而不是一周开始的第一天
- offset = -6
- }
- mondayTime := time.Now().AddDate(0, 0, offset)
- mondayTime = time.Date(mondayTime.Year(), mondayTime.Month(), mondayTime.Day(), 0, 0, 0, 0, mondayTime.Location())
- return mondayTime
- }
- // GetNowWeekLastDay 获取本周最后一天的时间
- func GetNowWeekLastDay() time.Time {
- offset := int(time.Monday - time.Now().Weekday())
- if offset == 1 { //正好是周日,但是按照中国人的理解,周日是一周最后一天,而不是一周开始的第一天
- offset = -6
- }
- firstDayTime := time.Now().AddDate(0, 0, offset)
- firstDayTime = time.Date(firstDayTime.Year(), firstDayTime.Month(), firstDayTime.Day(), 0, 0, 0, 0, firstDayTime.Location()).AddDate(0, 0, 6)
- lastDayTime := time.Date(firstDayTime.Year(), firstDayTime.Month(), firstDayTime.Day(), 23, 59, 59, 0, firstDayTime.Location())
- return lastDayTime
- }
- // GetNowMonthFirstDay 获取本月第一天的时间
- func GetNowMonthFirstDay() time.Time {
- nowMonthFirstDay := time.Date(time.Now().Year(), time.Now().Month(), 1, 0, 0, 0, 0, time.Now().Location())
- return nowMonthFirstDay
- }
- // GetNowMonthLastDay 获取本月最后一天的时间
- func GetNowMonthLastDay() time.Time {
- nowMonthLastDay := time.Date(time.Now().Year(), time.Now().Month(), 1, 0, 0, 0, 0, time.Now().Location()).AddDate(0, 1, -1)
- nowMonthLastDay = time.Date(nowMonthLastDay.Year(), nowMonthLastDay.Month(), nowMonthLastDay.Day(), 23, 59, 59, 0, nowMonthLastDay.Location())
- return nowMonthLastDay
- }
- // GetNowQuarterFirstDay 获取本季度第一天的时间
- func GetNowQuarterFirstDay() time.Time {
- month := int(time.Now().Month())
- var nowQuarterFirstDay time.Time
- if month >= 1 && month <= 3 {
- //1月1号
- nowQuarterFirstDay = time.Date(time.Now().Year(), 1, 1, 0, 0, 0, 0, time.Now().Location())
- } else if month >= 4 && month <= 6 {
- //4月1号
- nowQuarterFirstDay = time.Date(time.Now().Year(), 4, 1, 0, 0, 0, 0, time.Now().Location())
- } else if month >= 7 && month <= 9 {
- nowQuarterFirstDay = time.Date(time.Now().Year(), 7, 1, 0, 0, 0, 0, time.Now().Location())
- } else {
- nowQuarterFirstDay = time.Date(time.Now().Year(), 10, 1, 0, 0, 0, 0, time.Now().Location())
- }
- return nowQuarterFirstDay
- }
- // GetNowQuarterLastDay 获取本季度最后一天的时间
- func GetNowQuarterLastDay() time.Time {
- month := int(time.Now().Month())
- var nowQuarterLastDay time.Time
- if month >= 1 && month <= 3 {
- //03-31 23:59:59
- nowQuarterLastDay = time.Date(time.Now().Year(), 3, 31, 23, 59, 59, 0, time.Now().Location())
- } else if month >= 4 && month <= 6 {
- //06-30 23:59:59
- nowQuarterLastDay = time.Date(time.Now().Year(), 6, 30, 23, 59, 59, 0, time.Now().Location())
- } else if month >= 7 && month <= 9 {
- //09-30 23:59:59
- nowQuarterLastDay = time.Date(time.Now().Year(), 9, 30, 23, 59, 59, 0, time.Now().Location())
- } else {
- //12-31 23:59:59
- nowQuarterLastDay = time.Date(time.Now().Year(), 12, 31, 23, 59, 59, 0, time.Now().Location())
- }
- return nowQuarterLastDay
- }
- // GetNowHalfYearFirstDay 获取当前半年的第一天的时间
- func GetNowHalfYearFirstDay() time.Time {
- month := int(time.Now().Month())
- var nowHalfYearLastDay time.Time
- if month >= 1 && month <= 6 {
- //03-31 23:59:59
- nowHalfYearLastDay = time.Date(time.Now().Year(), 1, 1, 0, 0, 0, 0, time.Now().Location())
- } else {
- //12-31 23:59:59
- nowHalfYearLastDay = time.Date(time.Now().Year(), 7, 1, 0, 0, 0, 0, time.Now().Location())
- }
- return nowHalfYearLastDay
- }
- // GetNowHalfYearLastDay 获取当前半年的最后一天的时间
- func GetNowHalfYearLastDay() time.Time {
- month := int(time.Now().Month())
- var nowHalfYearLastDay time.Time
- if month >= 1 && month <= 6 {
- //03-31 23:59:59
- nowHalfYearLastDay = time.Date(time.Now().Year(), 6, 30, 23, 59, 59, 0, time.Now().Location())
- } else {
- //12-31 23:59:59
- nowHalfYearLastDay = time.Date(time.Now().Year(), 12, 31, 23, 59, 59, 0, time.Now().Location())
- }
- return nowHalfYearLastDay
- }
- // GetNowYearFirstDay 获取当前年的最后一天的时间
- func GetNowYearFirstDay() time.Time {
- //12-31 23:59:59
- nowYearFirstDay := time.Date(time.Now().Year(), 1, 1, 0, 0, 0, 0, time.Now().Location())
- return nowYearFirstDay
- }
- // GetNowYearLastDay 获取当前年的最后一天的时间
- func GetNowYearLastDay() time.Time {
- //12-31 23:59:59
- nowYearLastDay := time.Date(time.Now().Year(), 12, 31, 23, 59, 59, 0, time.Now().Location())
- return nowYearLastDay
- }
- // CalculationDate 计算两个日期之间相差n年m月y天
- // FormatPrice 格式化展示金额数字(财务金额展示,小数点前,每三位用,隔开) 1,234,567,898.55
- func FormatPrice(price float64) (str string) {
- str = decimal.NewFromFloat(price).String()
- length := len(str)
- if length < 4 {
- return str
- }
- arr := strings.Split(str, ".") //用小数点符号分割字符串,为数组接收
- length1 := len(arr[0])
- if length1 < 4 {
- return str
- }
- count := (length1 - 1) / 3
- for i := 0; i < count; i++ {
- arr[0] = arr[0][:length1-(i+1)*3] + "," + arr[0][length1-(i+1)*3:]
- }
- return strings.Join(arr, ".") //将一系列字符串连接为一个字符串,之间用sep来分隔。
- }
- // getMonthDay 获取某年某月有多少天
- func getMonthDay(year, month int) (days int) {
- if month != 2 {
- if month == 4 || month == 6 || month == 9 || month == 11 {
- days = 30
- } else {
- days = 31
- }
- } else {
- if ((year%4) == 0 && (year%100) != 0) || (year%400) == 0 {
- days = 29
- } else {
- days = 28
- }
- }
- return
- }
- func SaveToFile(content, path string) error {
- f, err := os.Create(path)
- defer f.Close()
- if err != nil {
- return err
- }
- f.Write([]byte(content))
- return nil
- }
- // HideString 给字段加***(从字符串中间替换,少于需要替换的长度,那么就补全*的长度)
- // src 待*字符串
- // hideLen 需要加*的长度
- func HideString(src string, hideLen int) string {
- if src == "" {
- return src
- }
- str := []rune(src)
- if hideLen == 0 {
- hideLen = 4
- }
- hideStr := ""
- for i := 0; i < hideLen; i++ {
- hideStr += "*"
- }
- strLen := len(str)
- // 字符长度是1
- if strLen == 1 {
- return string(str[:1]) + hideStr
- }
- //字符长度大于1,但是小于等于需要隐藏的字符长度,那么就隐藏中间,保留前后各一位字符
- if strLen <= hideLen+2 {
- return string(str[:1]) + hideStr + string(str[strLen-1:])
- }
- subLen := strLen - hideLen //剩余需要展示的字符长度
- decimal.NewFromFloat(2)
- frontLenDecimal := decimal.NewFromInt(int64(subLen)).Div(decimal.NewFromInt(2)) //前面需要展示的字符的长度
- frontLen := frontLenDecimal.Floor().IntPart()
- return string(str[:frontLen]) + hideStr + string(str[frontLen+int64(hideLen):])
- }
- // 用户参会时间转换
- func GetAttendanceDetailSeconds(secondNum int) string {
- var timeStr string
- if secondNum <= 60 {
- if secondNum < 10 {
- timeStr = "0" + strconv.Itoa(secondNum) + "''"
- } else {
- timeStr = strconv.Itoa(secondNum) + "''"
- }
- } else {
- var remainderStr string
- remainderNum := secondNum % 60
- minuteNum := secondNum / 60
- if remainderNum < 10 {
- remainderStr = "0" + strconv.Itoa(remainderNum) + "''"
- } else {
- remainderStr = strconv.Itoa(remainderNum) + "''"
- }
- if minuteNum < 10 {
- timeStr = "0" + strconv.Itoa(minuteNum) + "'" + remainderStr
- } else {
- timeStr = strconv.Itoa(minuteNum) + "'" + remainderStr
- }
- }
- return timeStr
- }
- // SubStr 截取字符串(中文)
- func SubStr(str string, subLen int) string {
- strRune := []rune(str)
- bodyRuneLen := len(strRune)
- if bodyRuneLen > subLen {
- bodyRuneLen = subLen
- }
- str = string(strRune[:bodyRuneLen])
- return str
- }
- func GetLocalIP() (ip string, err error) {
- addrs, err := net.InterfaceAddrs()
- if err != nil {
- return
- }
- for _, addr := range addrs {
- ipAddr, ok := addr.(*net.IPNet)
- if !ok {
- continue
- }
- if ipAddr.IP.IsLoopback() {
- continue
- }
- if !ipAddr.IP.IsGlobalUnicast() {
- continue
- }
- return ipAddr.IP.String(), nil
- }
- return
- }
- func PrintLog(params ...string) {
- _, file, line, ok := runtime.Caller(1)
- fmt.Println(file, line, ok, params)
- }
- // InArrayByStr php中的in_array(判断String类型的切片中是否存在该string值)
- func InArrayByStr(idStrList []string, searchId string) (has bool) {
- for _, id := range idStrList {
- if id == searchId {
- has = true
- return
- }
- }
- return
- }
- // InArrayByInt php中的in_array(判断Int类型的切片中是否存在该Int值)
- func InArrayByInt(idStrList []int, searchId int) (has bool) {
- for _, id := range idStrList {
- if id == searchId {
- has = true
- return
- }
- }
- return
- }
- // GetOrmInReplace 获取orm的in查询替换?的方法
- func GetOrmInReplace(num int) string {
- template := make([]string, num)
- for i := 0; i < num; i++ {
- template[i] = "?"
- }
- return strings.Join(template, ",")
- }
- // GetTimeSubDay 计算两个时间的自然日期差
- func GetTimeSubDay(t1, t2 time.Time) int {
- var day int
- swap := false
- if t1.Unix() > t2.Unix() {
- t1, t2 = t2, t1
- swap = true
- }
- t1_ := t1.Add(time.Duration(t2.Sub(t1).Milliseconds()%86400000) * time.Millisecond)
- day = int(t2.Sub(t1).Hours() / 24)
- // 计算在t1+两个时间的余数之后天数是否有变化
- if t1_.Day() != t1.Day() {
- day += 1
- }
- if swap {
- day = -day
- }
- return day
- }
- // GetFrequencyEndDay 根据当前时间和频度,获取该频度下最后一天的日期
- func GetFrequencyEndDay(currDate time.Time, frequency string) (endDate time.Time) {
- switch frequency {
- case "周度":
- // 如果当前就是最后一天,那么就直接返回本日期就好了
- if currDate.Weekday() == 0 {
- endDate = currDate
- } else {
- endDate = currDate.AddDate(0, 0, 7-int(currDate.Weekday()))
- }
- case "旬度":
- nextDay := currDate.AddDate(0, 0, 1)
- if nextDay.Day() == 1 || currDate.Day() == 10 || currDate.Day() == 20 {
- //如果是每月10、20、最后一天,那么就直接返回本日期就好了
- endDate = currDate
- } else {
- if currDate.Day() < 10 { // 每月10号
- endDate = time.Date(currDate.Year(), currDate.Month(), 10, 0, 0, 0, 0, time.Local)
- } else if currDate.Day() < 20 { // 每月10号
- endDate = time.Date(currDate.Year(), currDate.Month(), 20, 0, 0, 0, 0, time.Local)
- } else {
- // 下旬,多种可能,最大天数可能存在8天,9天,10天,11天,
- tmpNextMonth := currDate.AddDate(0, 0, 13)
- endDate = time.Date(tmpNextMonth.Year(), tmpNextMonth.Month(), 1, 0, 0, 0, 0, time.Local).AddDate(0, 0, -1)
- }
- }
- case "月度":
- nextDay := currDate.AddDate(0, 0, 1)
- if nextDay.Day() == 1 {
- //如果是每月的最后一天,那么就直接返回本日期就好了
- endDate = currDate
- } else {
- endDate = time.Date(nextDay.Year(), nextDay.Month()+1, 1, 0, 0, 0, 0, time.Local).AddDate(0, 0, -1)
- }
- case "季度":
- nextDay := currDate.AddDate(0, 0, 1)
- if (nextDay.Month() == 1 || nextDay.Month() == 4 || nextDay.Month() == 7 || nextDay.Month() == 10) && nextDay.Day() == 1 {
- //如果是每季的最后一天,那么就直接返回本日期就好了
- endDate = currDate
- } else {
- if currDate.Month() < 4 { // 1季度
- endDate = time.Date(currDate.Year(), 3, 31, 0, 0, 0, 0, time.Local)
- } else if currDate.Month() < 7 { // 2季度
- endDate = time.Date(currDate.Year(), 6, 30, 0, 0, 0, 0, time.Local)
- } else if currDate.Month() < 10 { // 3季度
- endDate = time.Date(currDate.Year(), 9, 30, 0, 0, 0, 0, time.Local)
- } else {
- // 4季度
- endDate = time.Date(currDate.Year(), 12, 31, 0, 0, 0, 0, time.Local)
- }
- }
- case "年度":
- endDate = time.Date(currDate.Year(), 12, 31, 0, 0, 0, 0, time.Local)
- default:
- endDate = currDate
- return
- }
- return
- }
- // CheckFrequency 获取两个频度之间是否相对低高频
- // 大于0,代表左侧是高频(例:左侧:日度,右侧:周度)
- // 等于0,代表同频
- // 小于0,代表右侧是高频(例:左侧:周度,右侧:日度)
- func CheckFrequency(leftFrequency, rightFrequency string) int {
- frequencyMap := map[string]int{
- "年度": 0,
- "半年度": 1,
- "季度": 2,
- "月度": 3,
- "旬度": 4,
- "周度": 5,
- "日度": 6,
- }
- return frequencyMap[leftFrequency] - frequencyMap[rightFrequency]
- }
- // 将下划线命名转为驼峰命名
- func SnakeToCamel(s string) string {
- var result string
- upper := true
- for _, c := range s {
- if c == '_' {
- upper = true
- continue
- }
- if upper {
- result += string(unicode.ToUpper(c))
- upper = false
- } else {
- result += string(c)
- }
- }
- return result
- }
- // 将驼峰命名转为下划线命名
- func CamelToSnake(s string) string {
- var result string
- for i, c := range s {
- if unicode.IsUpper(c) {
- if i > 0 {
- result += "_"
- }
- result += string(unicode.ToLower(c))
- } else {
- result += string(c)
- }
- }
- return result
- }
- func TimeTransferString(format string, t time.Time) string {
- str := t.Format(format)
- if t.IsZero() {
- return ""
- }
- return str
- }
- // GetEdbRefreshStartDate
- // @Description: 获取开始刷新时间
- // @author: Roc
- // @datetime 2024-02-05 11:23:55
- // @param startDate string
- // @return string
- func GetEdbRefreshStartDate(startDate string) string {
- // 没有传入日期,或者日期异常的话,那么就是从1990-01-01开始
- if startDate == `` || strings.Contains(startDate, "0000-") {
- return "1990-01-01"
- }
- return startDate
- }
- // GetEdbRefreshEndDate
- // @Description: 获取结束刷新时间
- // @author: Roc
- // @datetime 2024-02-05 11:23:55
- // @param startDate string
- // @return string
- func GetEdbRefreshEndDate(endDate string) string {
- // 没有传入日期,或者日期异常的话,那么就是从1990-01-01开始
- if endDate == `` || strings.Contains(endDate, "0000-") {
- return time.Now().Format(FormatDate)
- }
- return endDate
- }
- func DealExcelDate(date string) (newDate time.Time, err error) {
- /*newDate, err = dateparse.ParseAny(date)
- if err != nil {
- return
- }
- newDate = time.Date(newDate.Year(), newDate.Month(), newDate.Day(), 0, 0, 0, 0, time.Local)*/
- if strings.Contains(date, "/") {
- newDate, err = time.ParseInLocation("2006/01/02", date, time.Local)
- return
- } else {
- newDate, err = time.ParseInLocation(FormatDate, date, time.Local)
- return
- }
- return
- }
- // FloatAlmostEqual 判断两个浮点数是否相等
- func FloatAlmostEqual(a, b float64) bool {
- epsilon := 1e-9 // 容差值
- return math.Abs(a-b) <= epsilon
- }
- // VerifyFrequency
- // @Description: 校验频度是否合规
- // @author: Roc
- // @datetime 2024-04-26 13:30:22
- // @param frequency string 待校验的频度
- // @return bool
- func VerifyFrequency(frequency string) bool {
- return InArrayByStr([]string{"年度", "半年度", "季度", "月度", "旬度", "周度", "日度"}, frequency)
- }
- // DateConvMysqlConvMongo
- // @Description: 将mysql中的日期比较符转换成mongo中的日期比较符
- // @author: Roc
- // @datetime 2024-05-08 11:03:26
- // @param dateCon string
- func DateConvMysqlConvMongo(dateCon string) string {
- cond := ""
- switch dateCon {
- case "=":
- cond = "$eq"
- case "<":
- cond = "$lt"
- case "<=":
- cond = "$lte"
- case ">":
- cond = "$gt"
- case ">=":
- cond = "$gte"
- }
- return cond
- }
- // GenerateEdbCodeMap 当前已经生成的指标编码map(暂时不做定时数据清理了,因为数据不大,我们至少每个月会重启一次,所以暂时不做定时数据清理)
- var GenerateEdbCodeMap = map[string]bool{}
- // GenerateEdbCode
- // @Description: 生成指标编码
- // @author: Roc
- // @datetime 2024-06-05 09:49:53
- // @param num int
- // @param pre string 前缀
- // @return edbCode string
- // @return err error
- func GenerateEdbCode(num int, pre string) (edbCode string, err error) {
- if num >= 10 {
- err = errors.New("指标编码生成失败,请重新生成")
- return
- }
- // 4位随机数
- randStr := GetRandDigit(4)
- // 年月日时分秒+4位随机数
- edbCode = `C` + pre + time.Now().Format(FormatShortDateTimeUnSpace) + randStr
- if _, ok := GenerateEdbCodeMap[edbCode]; ok {
- num++
- edbCode, err = GenerateEdbCode(num, pre)
- }
- GenerateEdbCodeMap[edbCode] = true
- return
- }
- // InsertStr2StrIdx 可分隔的字符串中插入指定字符串, 例如: CO1 Comdty插入V => CO1 V Comdty
- func InsertStr2StrIdx(str, sep string, idx int, value string) string {
- str = strings.TrimSpace(str)
- // 默认以空格作为分隔符
- if sep == "" {
- sep = " "
- }
- slice := strings.Split(str, sep)
- if len(slice) < 2 {
- return str
- }
- // 如果idx不在切片的有效范围内,直接返回原字符串
- if idx < 0 || idx > len(slice) {
- return str
- }
- slice = append(slice[:idx], append([]string{value}, slice[idx:]...)...)
- return strings.Join(slice, sep)
- }
- // FormatFloatPlaces 格式化浮点数位数
- func FormatFloatPlaces(val float64, places int32) (newVal float64, err error) {
- if places <= 0 {
- places = 4
- }
- strNewVal := decimal.NewFromFloat(val).Round(places).String()
- di, e := decimal.NewFromString(strNewVal)
- if e != nil {
- err = fmt.Errorf("NewFromString err: %v", e)
- return
- }
- newVal, _ = di.Float64()
- return
- }
- // handleSystemAppointDateT
- // @Description: 处理系统日期相关的指定频率(所在周/旬/月/季/半年/年的最后/最早一天)
- // @author: Roc
- // @datetime2023-10-27 09:31:35
- // @param Frequency string
- // @param Day string
- // @return date string
- // @return err error
- // @return errMsg string
- func HandleSystemAppointDateT(currDate time.Time, appointDay, frequency string) (date string, err error, errMsg string) {
- //currDate := time.Now()
- switch frequency {
- case "本周":
- day := int(currDate.Weekday())
- if day == 0 { // 周日
- day = 7
- }
- num := 0
- switch appointDay {
- case "周一":
- num = 1
- case "周二":
- num = 2
- case "周三":
- num = 3
- case "周四":
- num = 4
- case "周五":
- num = 5
- case "周六":
- num = 6
- case "周日":
- num = 7
- }
- day = num - day
- date = currDate.AddDate(0, 0, day).Format(FormatDate)
- case "本旬":
- day := currDate.Day()
- var tmpDate time.Time
- switch appointDay {
- case "第一天":
- if day <= 10 {
- tmpDate = time.Date(currDate.Year(), currDate.Month(), 1, 0, 0, 0, 0, currDate.Location())
- } else if day <= 20 {
- tmpDate = time.Date(currDate.Year(), currDate.Month(), 11, 0, 0, 0, 0, currDate.Location())
- } else {
- tmpDate = time.Date(currDate.Year(), currDate.Month(), 21, 0, 0, 0, 0, currDate.Location())
- }
- case "最后一天":
- if day <= 10 {
- tmpDate = time.Date(currDate.Year(), currDate.Month(), 10, 0, 0, 0, 0, currDate.Location())
- } else if day <= 20 {
- tmpDate = time.Date(currDate.Year(), currDate.Month(), 20, 0, 0, 0, 0, currDate.Location())
- } else {
- tmpDate = time.Date(currDate.Year(), currDate.Month()+1, 1, 0, 0, 0, 0, currDate.Location()).AddDate(0, 0, -1)
- }
- }
- date = tmpDate.Format(FormatDate)
- case "本月":
- var tmpDate time.Time
- switch appointDay {
- case "第一天":
- tmpDate = time.Date(currDate.Year(), currDate.Month(), 1, 0, 0, 0, 0, currDate.Location())
- case "最后一天":
- tmpDate = time.Date(currDate.Year(), currDate.Month()+1, 1, 0, 0, 0, 0, currDate.Location()).AddDate(0, 0, -1)
- }
- date = tmpDate.Format(FormatDate)
- case "本季":
- month := currDate.Month()
- var tmpDate time.Time
- switch appointDay {
- case "第一天":
- if month <= 3 {
- tmpDate = time.Date(currDate.Year(), 1, 1, 0, 0, 0, 0, currDate.Location())
- } else if month <= 6 {
- tmpDate = time.Date(currDate.Year(), 4, 1, 0, 0, 0, 0, currDate.Location())
- } else if month <= 9 {
- tmpDate = time.Date(currDate.Year(), 7, 1, 0, 0, 0, 0, currDate.Location())
- } else {
- tmpDate = time.Date(currDate.Year(), 10, 1, 0, 0, 0, 0, currDate.Location())
- }
- case "最后一天":
- if month <= 3 {
- tmpDate = time.Date(currDate.Year(), 3, 31, 0, 0, 0, 0, currDate.Location())
- } else if month <= 6 {
- tmpDate = time.Date(currDate.Year(), 6, 30, 0, 0, 0, 0, currDate.Location())
- } else if month <= 9 {
- tmpDate = time.Date(currDate.Year(), 9, 30, 0, 0, 0, 0, currDate.Location())
- } else {
- tmpDate = time.Date(currDate.Year(), 12, 31, 0, 0, 0, 0, currDate.Location())
- }
- }
- date = tmpDate.Format(FormatDate)
- case "本半年":
- month := currDate.Month()
- var tmpDate time.Time
- switch appointDay {
- case "第一天":
- if month <= 6 {
- tmpDate = time.Date(currDate.Year(), 1, 1, 0, 0, 0, 0, currDate.Location())
- } else {
- tmpDate = time.Date(currDate.Year(), 7, 1, 0, 0, 0, 0, currDate.Location())
- }
- case "最后一天":
- if month <= 6 {
- tmpDate = time.Date(currDate.Year(), 6, 30, 0, 0, 0, 0, currDate.Location())
- } else {
- tmpDate = time.Date(currDate.Year(), 12, 31, 0, 0, 0, 0, currDate.Location())
- }
- }
- date = tmpDate.Format(FormatDate)
- case "本年":
- var tmpDate time.Time
- switch appointDay {
- case "第一天":
- tmpDate = time.Date(currDate.Year(), 1, 1, 0, 0, 0, 0, currDate.Location())
- case "最后一天":
- tmpDate = time.Date(currDate.Year(), 12, 31, 0, 0, 0, 0, currDate.Location())
- }
- date = tmpDate.Format(FormatDate)
- default:
- errMsg = "错误的日期频度:" + frequency
- err = errors.New(errMsg)
- return
- }
- return
- }
- func CompareFloatByOpStrings(op string, a, b float64) bool {
- switch op {
- case "=":
- return a == b
- case ">":
- return a > b
- case ">=":
- return a >= b
- case "<=":
- return a <= b
- case "<":
- return a < b
- }
- return false
- }
- // IsDivideZero
- // @Description: 判断是否分母为0的bug
- // @author: Roc
- // @datetime 2024-08-23 11:21:25
- // @param err error
- // @return bool
- func IsDivideZero(err error) bool {
- if err == nil {
- return false
- }
- //if strings.Contains(err.Error(), "divide by zero") {
- // return true
- //}
- if strings.Contains(err.Error(), "division by zero") {
- return true
- }
- return false
- }
- // GetTradingDays 获取开始时间至结束时间之间的交易日期(日度)
- func GetTradingDays(startDate, endDate time.Time) []time.Time {
- var tradingDays []time.Time
- for curr := startDate; !curr.After(endDate); curr = curr.AddDate(0, 0, 1) {
- if curr.Weekday() >= time.Monday && curr.Weekday() <= time.Friday {
- tradingDays = append(tradingDays, curr)
- }
- }
- return tradingDays
- }
- // CalculateTradingDays 计算天数 跳过周末
- func CalculateTradingDays(baseDate time.Time, tradingDays int, resultMap map[string]float64, moveType int) int {
- oldDate := baseDate
- // Move to the next day
- var moveDays int
- if moveType != 2 {
- moveDays = tradingDays
- } else {
- moveDays = -tradingDays
- }
- daysMoved := 0 // 实际移动的工作日数
- for daysMoved < tradingDays {
- // 根据 moveType,决定是前进一天还是后退一天
- if moveDays > 0 {
- baseDate = baseDate.AddDate(0, 0, 1) // 向后移动一天
- } else {
- baseDate = baseDate.AddDate(0, 0, -1) // 向前移动一天
- }
- // 如果当前日期不是周六或周日,则计入交易日
- weekday := baseDate.Weekday()
- if weekday != time.Saturday && weekday != time.Sunday {
- daysMoved++
- }
- }
- // 计算实际天数差(包含跳过周末后的移动天数)
- subDays := baseDate.Sub(oldDate)
- days := int(math.Abs(subDays.Hours() / 24))
- return days
- }
- // getLastDayOfMonth 获取某个月的最后一天
- func getLastDayOfMonth(t time.Time) time.Time {
- // 移动到下个月的第一天,然后回退一天得到当前月的最后一天
- return time.Date(t.Year(), t.Month(), 1, 0, 0, 0, 0, t.Location()).AddDate(0, 1, -1)
- }
- // 获取某年某月的天数
- func daysInMonth(year int, month time.Month) int {
- if month == time.February {
- // 闰年处理
- if (year%4 == 0 && year%100 != 0) || (year%400 == 0) {
- return 29
- }
- return 28
- }
- if month == time.April || month == time.June || month == time.September || month == time.November {
- return 30
- }
- return 31
- }
- // CalculateEndOfMonth 使用天数计算未来月末的天数差
- /*func CalculateEndOfMonth(baseDate time.Time, months, moveType int) int {
- // 假设每个月28天,然后算到目标月的下个月
- var daysToAdd int
- // 计算目标月的下个月月初
- if moveType == 2 {
- daysToAdd = -(28 * months)
- } else {
- daysToAdd = 28 * (months + 2)
- }
- nextMonth := baseDate.AddDate(0, 0, daysToAdd)
- // 获取目标月月初的第一天
- firstDayOfNextMonth := time.Date(nextMonth.Year(), nextMonth.Month(), 1, 0, 0, 0, 0, nextMonth.Location())
- // 获取目标月的最后一天(即月初减去1天)
- lastDayOfTargetMonth := firstDayOfNextMonth.AddDate(0, 0, -1)
- // 计算天数差
- daysDifference := int(math.Abs(lastDayOfTargetMonth.Sub(baseDate).Hours() / 24))
- return daysDifference
- }*/
- // CalculateEndOfMonth 计算从 baseDate 开始经过 months 后目标月的最后一天距离 baseDate 的天数差
- func CalculateEndOfMonth(baseDate time.Time, months, moveType int) int {
- // 初始化目标日期为当前日期
- targetDate := baseDate
- // 如果 moveType == 2,表示倒退月份;否则为前进月份
- if moveType == 2 {
- months = -months
- }
- // 手动通过天数加减月份
- for i := 0; i < int(math.Abs(float64(months))); i++ {
- // 首先将日期调整到当前月份的第一天
- targetDate = time.Date(targetDate.Year(), targetDate.Month(), 1, 0, 0, 0, 0, targetDate.Location())
- // 根据 moveType 来前进或倒退到下一个月的第一天
- if months > 0 {
- // 前进到下一个月的第一天
- targetDate = targetDate.AddDate(0, 1, 0)
- } else {
- // 倒退到上一个月的第一天
- targetDate = targetDate.AddDate(0, -1, 0)
- }
- // 如果是倒退,调整为目标月的最后一天
- if months < 0 {
- daysInCurrentMonth := daysInMonth(targetDate.Year(), targetDate.Month())
- targetDate = time.Date(targetDate.Year(), targetDate.Month(), daysInCurrentMonth, 0, 0, 0, 0, targetDate.Location())
- }
- }
- // 获取目标月的下个月月初第一天
- firstDayOfNextMonth := time.Date(targetDate.Year(), targetDate.Month()+1, 1, 0, 0, 0, 0, targetDate.Location())
- // 获取目标月的最后一天(即下个月月初减去一天)
- lastDayOfTargetMonth := firstDayOfNextMonth.AddDate(0, 0, -1)
- // 计算天数差
- daysDifference := int(math.Abs(lastDayOfTargetMonth.Sub(baseDate).Hours() / 24))
- return daysDifference
- }
- // CalculateDekadTime 计算旬度时间
- func CalculateDekadTime(baseDate time.Time, tradingDays, moveType int) int {
- // 记录原始日期
- oldDate := baseDate
- // 计算移动的旬数,1 旬为 10 天
- var moveDekads int
- if moveType != 2 {
- moveDekads = tradingDays
- } else {
- moveDekads = -tradingDays
- }
- // 移动的天数为旬数 * 10,初步移动日期
- baseDate = baseDate.AddDate(0, 0, moveDekads*10)
- // 调整日期到最近的旬:10号、20号或月末
- baseDate = adjustToNearestDekad(baseDate)
- // 计算时间差
- subDays := baseDate.Sub(oldDate)
- days := int(math.Abs(subDays.Hours() / 24))
- fmt.Printf("最终日期: %s, 总天数差: %d 天\n", baseDate.Format("2006-01-02"), days)
- return days
- }
- // adjustToNearestDekad 调整日期到最近的旬
- func adjustToNearestDekad(date time.Time) time.Time {
- day := date.Day()
- lastDayOfMonth := getLastDayOfMonth(date).Day()
- // 这里有些无可奈何了,暂时这么写吧。。。需要跟据润 平年根据每个月进行单独处理
- if day < 5 {
- dateOneMonthAgo := date.AddDate(0, -1, 0)
- lastDayOfMonth2 := getLastDayOfMonth(dateOneMonthAgo).Day()
- return time.Date(date.Year(), date.Month()-1, lastDayOfMonth2, 0, 0, 0, 0, date.Location())
- } else if day > 5 && day <= 15 {
- return time.Date(date.Year(), date.Month(), 10, 0, 0, 0, 0, date.Location())
- } else if day > 11 && day <= 25 {
- return time.Date(date.Year(), date.Month(), 20, 0, 0, 0, 0, date.Location())
- } else {
- return time.Date(date.Year(), date.Month(), lastDayOfMonth, 0, 0, 0, 0, date.Location())
- }
- }
- /*// getLastDayOfMonth 返回指定日期所在月份的最后一天
- func getLastDayOfMonth(date time.Time) time.Time {
- // 获取下个月的第一天
- nextMonth := date.AddDate(0, 1, -date.Day()+1)
- // 下个月第一天减去一天即为当前月的最后一天
- lastDay := nextMonth.AddDate(0, 0, -1)
- return lastDay
- }*/
- // CalculateEndOfQuarter 计算从当前到未来的季度末的天数差
- func CalculateEndOfQuarter(baseDate time.Time, quarters, moveType int) int {
- // Move forward `quarters` quarters (3 months per quarter)
- return CalculateEndOfMonth(baseDate, quarters*3, moveType)
- }
- // CalculateEndOfYear 计算从当前到未来的年末的天数差
- func CalculateEndOfYear(baseDate time.Time, years, moveType int) int {
- // Move forward `years` years
- return CalculateEndOfMonth(baseDate, years*12, moveType)
- }
- // CalculateEndOfHalfYear 计算从当前到未来的半年的天数差
- func CalculateEndOfHalfYear(baseDate time.Time, years, moveType int) int {
- // Move forward `half years` years
- return CalculateEndOfMonth(baseDate, years*6, moveType)
- }
- // GetCurrentTime 获取当前时间 格式为 2024-08-07 15:29:58
- func GetCurrentTime() string {
- return time.Now().Format("2006-01-02 15:04:05")
- }
- // ParseDateTime 尝试解析不同的日期格式
- func ParseDateTime(dateStr string) (time.Time, error) {
- // 检查是否是只有年份的格式 "1971"
- if len(dateStr) == 4 {
- return parseYearOnlyDate(dateStr)
- } else if strings.Contains(dateStr, "-") {
- // 检查是否是季度格式 "Q1-1970"
- if strings.HasPrefix(dateStr, "Q") {
- return parseQuarterDate(dateStr)
- }
- // 检查是否是 "28-Jun-2019" 格式
- if len(dateStr) > 9 {
- return time.Parse("2-Jan-2006", dateStr)
- }
- } else {
- excelDate, err := strconv.Atoi(dateStr)
- if err != nil {
- return time.Time{}, err
- }
- // 创建time.Time对象,这里使用的是UTC时区
- t := time.Date(1899, 12, 30, 0, 0, 0, 0, time.UTC).AddDate(0, 0, excelDate)
- return t, nil
- }
- return time.Time{}, fmt.Errorf("unsupported date format: %s", dateStr)
- }
- // parseQuarterDate 解析季度日期 "Q1-1970"
- func parseQuarterDate(dateStr string) (time.Time, error) {
- parts := strings.Split(dateStr, "-")
- if len(parts) != 2 {
- return time.Time{}, fmt.Errorf("invalid quarter date format: %s", dateStr)
- }
- q, err := strconv.Atoi(parts[0][1:])
- if err != nil {
- return time.Time{}, err
- }
- year, err := strconv.Atoi(parts[1])
- if err != nil {
- return time.Time{}, err
- }
- // 根据季度计算月份
- month := time.January + time.Month((q-1)*3)
- return time.Date(year, month, 1, 0, 0, 0, 0, time.UTC), nil
- }
- // parseYearOnlyDate 解析只有年份的日期 "1971"
- func parseYearOnlyDate(dateStr string) (time.Time, error) {
- year, err := strconv.Atoi(dateStr)
- if err != nil {
- return time.Time{}, err
- }
- return time.Date(year, time.January, 1, 0, 0, 0, 0, time.UTC), nil
- }
- // ReverseTimeSlice 反转时间类型切片
- func ReverseTimeSlice(s []time.Time) []time.Time {
- for i, j := 0, len(s)-1; i < j; i, j = i+1, j-1 {
- s[i], s[j] = s[j], s[i]
- }
- return s
- }
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