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- package utils
- import (
- "bufio"
- "crypto/cipher"
- "crypto/des"
- "crypto/md5"
- "crypto/sha1"
- "encoding/base64"
- "encoding/hex"
- "encoding/json"
- "errors"
- "fmt"
- "image"
- "image/png"
- "io"
- "math"
- "math/rand"
- "net"
- "net/http"
- "os"
- "os/exec"
- "path"
- "regexp"
- "strconv"
- "strings"
- "time"
- "github.com/shopspring/decimal"
- )
- // 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 ""
- }
- // 数据没有记录
- func ErrNoRow() string {
- return "<QuerySeter> no row found"
- }
- // 校验邮箱格式
- func ValidateEmailFormatat(email string) bool {
- reg := regexp.MustCompile(RegularEmail)
- return reg.MatchString(email)
- }
- // 验证是否是手机号
- func ValidateMobileFormatat(mobileNum string) bool {
- reg := regexp.MustCompile(RegularMobile)
- return reg.MatchString(mobileNum)
- }
- // 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) {
- 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
- }
- // 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, ",")
- }
- // RevSlice 反转切片
- func RevSlice(slice []int) []int {
- for i, j := 0, len(slice)-1; i < j; i, j = i+1, j-1 {
- slice[i], slice[j] = slice[j], slice[i]
- }
- return slice
- }
- // 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
- }
- // GetDaysBetween2Date 计算两个日期之间相差几天
- func GetDaysBetween2Date(format, date1Str, date2Str string) (int, error) {
- // 将字符串转化为Time格式
- date1, err := time.ParseInLocation(format, date1Str, time.Local)
- if err != nil {
- return 0, err
- }
- // 将字符串转化为Time格式
- date2, err := time.ParseInLocation(format, date2Str, time.Local)
- if err != nil {
- return 0, err
- }
- //计算相差天数
- return int(date1.Sub(date2).Hours() / 24), nil
- }
- // MapSorter 对于map 排序
- type MapSorter []Item
- type Item struct {
- Key int
- Val float64
- }
- func NewMapSorter(m map[int]float64) MapSorter {
- ms := make(MapSorter, 0, len(m))
- for k, v := range m {
- ms = append(ms, Item{k, v})
- }
- return ms
- }
- func (ms MapSorter) Len() int {
- return len(ms)
- }
- func (ms MapSorter) Less(i, j int) bool {
- return ms[i].Val > ms[j].Val // 按值排序
- //return ms[i].Key < ms[j].Key // 按键排序
- }
- func (ms MapSorter) Swap(i, j int) {
- ms[i], ms[j] = ms[j], ms[i]
- }
- // InArrayByInt php中的in_array(判断Int类型的切片中是否存在该int值)
- func InArrayByInt(idIntList []int, searchId int) (has bool) {
- for _, id := range idIntList {
- if id == searchId {
- has = true
- return
- }
- }
- return
- }
- // 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
- }
- // GetDateByDateType 通过dateType获取需要的开始/结束日期
- func GetDateByDateType(dateType int, tmpStartDate, tmpEndDate string) (startDate, endDate string) {
- startDate = tmpStartDate
- endDate = tmpEndDate
- switch dateType {
- case 1:
- startDate = "2000-01-01"
- endDate = ""
- case 2:
- startDate = "2010-01-01"
- endDate = ""
- case 3:
- startDate = "2015-01-01"
- endDate = ""
- case 4:
- //startDate = strconv.Itoa(time.Now().Year()) + "-01-01"
- startDate = "2021-01-01"
- endDate = ""
- case 5:
- //startDate = startDate + "-01"
- //endDate = endDate + "-01"
- case 6:
- //startDate = startDate + "-01"
- endDate = ""
- case 7:
- startDate = "2018-01-01"
- endDate = ""
- case 8:
- startDate = "2019-01-01"
- endDate = ""
- case 9:
- startDate = "2020-01-01"
- endDate = ""
- case 11:
- startDate = "2022-01-01"
- endDate = ""
- }
- // 兼容日期错误
- {
- if strings.Count(startDate, "-") == 1 {
- startDate = startDate + "-01"
- }
- if strings.Count(endDate, "-") == 1 {
- endDate = endDate + "-01"
- }
- }
- return
- }
- // GetDateByDateType2 通过dateType获取需要的开始/结束日期(日期类型:1:最近3月;2:最近6月;3:最近1年;4:最近2年;5:最近3年;6:最近5年;7:最近10年,8:自定义时间)
- func GetDateByDateType2(dateType int, currDate time.Time) (startDate time.Time) {
- switch dateType {
- case 1:
- startDate = currDate.AddDate(0, -3, 0)
- case 2:
- startDate = currDate.AddDate(0, -6, 0)
- case 3:
- startDate = currDate.AddDate(-1, 0, 0)
- case 4:
- startDate = currDate.AddDate(-2, 0, 0)
- case 5:
- startDate = currDate.AddDate(-3, 0, 0)
- case 6:
- startDate = currDate.AddDate(-5, 0, 0)
- case 7:
- startDate = currDate.AddDate(-10, 0, 0)
- }
- return
- }
- // GetCeilNewNum 保留n位有效数字的向上取整
- // @params num 实际数据
- // @params baseLen 需要保留的有效位数
- func GetCeilNewNum(num float64, baseLen int) (newNum float64) {
- if num >= 1 {
- tmpNum := int(math.Ceil(num)) // 向上取整
- str := strconv.Itoa(tmpNum)
- lenStr := len(str)
- if lenStr > baseLen {
- newNumStr := str[0:baseLen]
- newNumInt, _ := strconv.Atoi(newNumStr)
- newNum = float64(newNumInt) * math.Pow(10, float64(lenStr-baseLen))
- if newNum < num {
- newNumInt += 1
- newNum = float64(newNumInt) * math.Pow(10, float64(lenStr-baseLen))
- }
- } else {
- newNum = float64(tmpNum)
- }
- return
- } else if num > 0 {
- // 这是小数
- str := strconv.FormatFloat(num, 'f', -1, 64)
- // 去除小数点和负号
- str = removeDecimalPoint(str)
- // 计算字符串长度
- lenStr := len(str)
- if lenStr > baseLen {
- newNumStr := str[0:baseLen]
- newNumInt, _ := strconv.Atoi(newNumStr)
- newNum, _ = decimal.NewFromInt(int64(newNumInt)).Div(decimal.NewFromFloat(math.Pow(10, float64(baseLen)))).Float64()
- if newNum < num {
- newNumInt += 1
- newNum, _ = decimal.NewFromInt(int64(newNumInt)).Div(decimal.NewFromFloat(math.Pow(10, float64(baseLen)))).Float64()
- }
- } else {
- newNum = num
- }
- } else if num > -1 {
- // 这是小数
- str := strconv.FormatFloat(num, 'f', -1, 64)
- // 去除小数点和负号
- str = removeDecimalPoint(str)
- // 计算字符串长度
- lenStr := len(str)
- if lenStr > baseLen {
- newNumStr := str[0:baseLen]
- newNumInt, _ := strconv.Atoi(newNumStr)
- newNum, _ = decimal.NewFromInt(int64(newNumInt)).Div(decimal.NewFromFloat(math.Pow(10, float64(baseLen)))).Float64()
- newNum = -newNum
- if newNum < num {
- newNumInt -= 1
- newNum, _ = decimal.NewFromInt(int64(newNumInt)).Div(decimal.NewFromFloat(math.Pow(10, float64(baseLen)))).Float64()
- newNum = -newNum
- }
- } else {
- newNum = num
- }
- if newNum == -0 {
- newNum = 0
- }
- } else { // 小于等于-1
- tmpNumFloat := math.Abs(num)
- tmpNum := int(math.Floor(tmpNumFloat)) // 向上取整
- str := strconv.Itoa(tmpNum)
- lenStr := len(str)
- if lenStr > baseLen {
- newNumStr := str[0:baseLen]
- //fmt.Println("newNumStr:", newNumStr)
- newNumInt, _ := strconv.Atoi(newNumStr)
- newNum = float64(newNumInt) * math.Pow(10, float64(lenStr-baseLen))
- newNum = -newNum
- if newNum < num {
- newNumInt -= 1
- newNum = float64(newNumInt) * math.Pow(10, float64(lenStr-baseLen))
- newNum = -newNum
- }
- } else {
- newNum = float64(-tmpNum)
- }
- }
- return
- }
- // GetFloorNewNum 保留n位有效数字的向下取整
- // @params num 实际数据
- // @params baseLen 需要保留的有效位数
- func GetFloorNewNum(num float64, baseLen int) (newNum float64) {
- if num >= 1 {
- tmpNum := int(math.Floor(num)) // 向上取整
- str := strconv.Itoa(tmpNum)
- lenStr := len(str)
- if lenStr > baseLen {
- newNumStr := str[0:baseLen]
- newNumInt, _ := strconv.Atoi(newNumStr)
- newNum = float64(newNumInt) * math.Pow(10, float64(lenStr-baseLen))
- if newNum < num {
- newNumInt -= 1
- newNum = float64(newNumInt) * math.Pow(10, float64(lenStr-baseLen))
- }
- } else {
- newNum = float64(tmpNum)
- }
- return
- } else if num > 0 {
- // 这是小数
- str := strconv.FormatFloat(num, 'f', -1, 64)
- // 去除小数点和负号
- str = removeDecimalPoint(str)
- // 计算字符串长度
- lenStr := len(str)
- if lenStr > baseLen {
- newNumStr := str[0:baseLen]
- newNumInt, _ := strconv.Atoi(newNumStr)
- newNum, _ = decimal.NewFromInt(int64(newNumInt)).Div(decimal.NewFromFloat(math.Pow(10, float64(baseLen)))).Float64()
- if newNum > num {
- newNumInt -= 1
- newNum, _ = decimal.NewFromInt(int64(newNumInt)).Div(decimal.NewFromFloat(math.Pow(10, float64(baseLen)))).Float64()
- }
- } else {
- newNum = num
- }
- } else if num > -1 {
- // 这是小数
- str := strconv.FormatFloat(num, 'f', -1, 64)
- // 去除小数点和负号
- str = removeDecimalPoint(str)
- // 计算字符串长度
- lenStr := len(str)
- if lenStr > baseLen {
- newNumStr := str[0:baseLen]
- newNumInt, _ := strconv.Atoi(newNumStr)
- newNum, _ = decimal.NewFromInt(int64(newNumInt)).Div(decimal.NewFromFloat(math.Pow(10, float64(baseLen)))).Float64()
- newNum = -newNum
- if newNum > num {
- newNumInt += 1
- newNum, _ = decimal.NewFromInt(int64(newNumInt)).Div(decimal.NewFromFloat(math.Pow(10, float64(baseLen)))).Float64()
- newNum = -newNum
- }
- } else {
- newNum = num
- }
- if newNum == -0 {
- newNum = 0
- }
- } else { // 小于等于-1
- tmpNumFloat := math.Abs(num)
- tmpNum := int(math.Ceil(tmpNumFloat)) // 向上取整
- str := strconv.Itoa(tmpNum)
- lenStr := len(str)
- if lenStr > baseLen {
- newNumStr := str[0:baseLen]
- //fmt.Println("newNumStr:", newNumStr)
- newNumInt, _ := strconv.Atoi(newNumStr)
- newNum = float64(newNumInt) * math.Pow(10, float64(lenStr-baseLen))
- newNum = -newNum
- if newNum > num {
- newNumInt += 1
- newNum = float64(newNumInt) * math.Pow(10, float64(lenStr-baseLen))
- newNum = -newNum
- }
- } else {
- newNum = float64(-tmpNum)
- }
- }
- return
- }
- // 去除小数点和负号
- func removeDecimalPoint(str string) string {
- // 去除小数点
- str = str[strings.Index(str, ".")+1:]
- 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 GetDateByDateTypeV2(dateType int, tmpStartDate, tmpEndDate string, startYear int, latestDate time.Time) (startDate, endDate string) {
- startDate = tmpStartDate
- endDate = tmpEndDate
- switch dateType {
- case 1:
- startDate = "2000-01-01"
- endDate = ""
- case 2:
- startDate = "2010-01-01"
- endDate = ""
- case 3:
- startDate = "2015-01-01"
- endDate = ""
- case 4:
- //startDate = strconv.Itoa(time.Now().Year()) + "-01-01"
- startDate = "2021-01-01"
- endDate = ""
- case 5:
- //startDate = startDate + "-01"
- //endDate = endDate + "-01"
- case 6:
- //startDate = startDate + "-01"
- endDate = ""
- case 7:
- startDate = "2018-01-01"
- endDate = ""
- case 8:
- startDate = "2019-01-01"
- endDate = ""
- case 9:
- startDate = "2020-01-01"
- endDate = ""
- case 11:
- startDate = "2022-01-01"
- endDate = ""
- case 12:
- startDate = "2023-01-01"
- endDate = ""
- case 13:
- startDate = "2024-01-01"
- endDate = ""
- case DateTypeNYears:
- if startYear == 0 { //默认取最近5年
- startYear = 5
- }
- if latestDate.IsZero() {
- return
- }
- startDate = latestDate.AddDate(-startYear, 0, 0).Format(FormatDate)
- endDate = ""
- }
- // 兼容日期错误
- {
- if strings.Count(startDate, "-") == 1 {
- startDate = startDate + "-01"
- }
- if strings.Count(endDate, "-") == 1 {
- endTime, err := time.Parse(FormatYearMonthDate, endDate)
- if err != nil {
- return
- }
- endDate = endTime.AddDate(0, 1, -1).Format(FormatDate)
- }
- }
- return
- }
- func GetColorMap() map[int]string {
- colorMap := make(map[int]string)
- colors := []string{"#0000FF", "#FF0000", "#999999", "#000000", "#7CB5EC", "#90ED7D", "#F7A35C", "#8085E9",
- "#F15C80", "#E4D354", "#2B908F", "#F45B5B", "#91E8E1", "#FDA8C7", "#8A4294",
- "#578B5A", "#0033FF", "#849EC1", "#FFDF0C", "#005496", "#00F0FF", "#4D535B",
- "#4F4C34", "#804141", "#86BABD", "#8AA3FF", "#960000", "#A173DB", "#A39340",
- "#CE814A", "#D1D2E6", "#EAB7B7", "#FF2E7A", "#FF4AF8", "#FF785B", "#FF9696", "#FFA800", "#FFBC97", "#FFDFDF"}
- for k, v := range colors {
- colorMap[k] = v
- }
- return colorMap
- }
- // GetDaysDiff1900 计算日期距离1900-01-01的天数
- func GetDaysDiff1900(date string) int {
- // 将字符串转换为时间类型
- //从1899年12月30日开始是因为Excel的日期计算是基于1900年1月1日的,而1900年并不是闰年,因此Excel日期计算存在一个错误。为了修正这个错误,
- //我们将时间回溯到1899年12月30日,这样在进行日期计算时可以正确地处理Excel日期。
- tStart, err := time.ParseInLocation(FormatDate, "1899-12-30", time.Local)
- if err != nil {
- return 0
- }
- tEnd, err := time.ParseInLocation(FormatDate, date, time.Local)
- if err != nil {
- return 0
- }
- // 计算两个日期之间的天数差值
- duration := tEnd.Sub(tStart).Hours() / 24
- days := int(duration)
- return days
- }
- func ReplaceFormulaByTagMap(valTagMap map[string]int, formulaStr string) string {
- funMap := getFormulaMap()
- for k, v := range funMap {
- formulaStr = strings.Replace(formulaStr, k, v, -1)
- }
- replaceCount := 0
- for tag, val := range valTagMap {
- dvStr := fmt.Sprintf("%v", val)
- formulaStr = strings.Replace(formulaStr, tag, dvStr, -1)
- replaceCount++
- }
- for k, v := range funMap {
- formulaStr = strings.Replace(formulaStr, v, k, -1)
- }
- return formulaStr
- }
- // GetFrequencyEn 获取频度的英文版
- func GetFrequencyEn(frequency string) (frequencyEn string) {
- switch frequency {
- case "日度":
- frequencyEn = "day"
- return
- case "周度":
- frequencyEn = "week"
- return
- case "旬度":
- frequencyEn = "ten days"
- return
- case "月度":
- frequencyEn = "month"
- return
- case "季度":
- frequencyEn = "quarter"
- return
- case "年度":
- frequencyEn = "year"
- return
- }
- return
- }
- // 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
- }
- func DesBase64Decrypt(crypted []byte, desKey string) []byte {
- result, _ := base64.StdEncoding.DecodeString(string(crypted))
- remain := len(result) % 8
- if remain > 0 {
- mod := 8 - remain
- for i := 0; i < mod; i++ {
- result = append(result, 0)
- }
- }
- origData, err := TripleDesDecrypt(result, []byte(desKey))
- if err != nil {
- panic(any(err))
- }
- return origData
- }
- // // 3DES解密
- func TripleDesDecrypt(crypted, key []byte) ([]byte, error) {
- block, err := des.NewTripleDESCipher(key)
- if err != nil {
- return nil, err
- }
- blockMode := cipher.NewCBCDecrypter(block, key[:8])
- origData := make([]byte, len(crypted))
- // origData := crypted
- blockMode.CryptBlocks(origData, crypted)
- origData = PKCS5UnPadding(origData)
- // origData = ZeroUnPadding(origData)
- return origData, nil
- }
- func PKCS5UnPadding(origData []byte) []byte {
- length := len(origData)
- // 去掉最后一个字节 unpadding 次
- unpadding := int(origData[length-1])
- return origData[:(length - unpadding)]
- }
- func TimeTransferString(format string, t time.Time) string {
- str := t.Format(format)
- if t.IsZero() {
- return ""
- }
- return str
- }
- // 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
- }
- // RoundNumber 保留小数位数
- func RoundNumber(num string, decimalPlaces int, hasPercent bool) string {
- numDecimal, _ := decimal.NewFromString(num)
- if hasPercent {
- numDecimal = numDecimal.Mul(decimal.NewFromInt(100))
- }
- numStr := numDecimal.Round(int32(decimalPlaces)).StringFixed(int32(decimalPlaces))
- if hasPercent {
- numStr += "%"
- }
- return numStr
- }
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