eta_mobile/utils/common.go

package utils

import (
	"bufio"
	"bytes"
	"crypto/hmac"
	"crypto/md5"
	"crypto/sha1"
	"encoding/base64"
	"encoding/hex"
	"encoding/json"
	"errors"
	"fmt"
	"github.com/PuerkitoBio/goquery"
	"github.com/shopspring/decimal"
	"html"
	"image"
	"image/png"
	"io"
	"math"
	"math/rand"
	"net"
	"net/http"
	"os"
	"os/exec"
	"path"
	"regexp"
	"strconv"
	"strings"
	"time"
)

// 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[:])
}

// HmacMd5 HmacMd5加密
func HmacMd5(key, data string) string {
	h := hmac.New(md5.New, []byte(key))
	h.Write([]byte(data))
	return hex.EncodeToString(h.Sum([]byte("")))
}

// 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"
}

// 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, "")

	re, _ = regexp.Compile("class[\\S\\s]+?>")
	src = re.ReplaceAllString(src, "")
	re, _ = regexp.Compile("\\<[\\S\\s]+?\\>")
	src = re.ReplaceAllString(src, "")

	src = strings.ReplaceAll(src, "&nbsp;", " ")
	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
}

// TrimStr 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.Parse("2006-01-02", ctime)
	staweek_int := startday.Weekday().String()
	return WeekDayMap[staweek_int]
}

// EnWeekToCnWeek 英文周几转中文周几
func EnWeekToCnWeek(enWeekStr 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",
	}
	cnWeekStr, ok := WeekDayMap[enWeekStr]
	if !ok {
		cnWeekStr = `周一`
	}
	return cnWeekStr
}

// 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
func CalculationDate(startDate, endDate time.Time) (beetweenDay string, err error) {
	//startDate := time.Date(2021, 3, 28, 0, 0, 0, 0, time.Now().Location())
	//endDate := time.Date(2022, 3, 31, 0, 0, 0, 0, time.Now().Location())
	numYear := endDate.Year() - startDate.Year()

	numMonth := int(endDate.Month()) - int(startDate.Month())

	numDay := 0
	//获取截止月的总天数
	endDateDays := getMonthDay(endDate.Year(), int(endDate.Month()))

	//获取截止月的前一个月
	endDatePrevMonthDate := endDate.AddDate(0, -1, 0)
	//获取截止日期的上一个月的总天数
	endDatePrevMonthDays := getMonthDay(endDatePrevMonthDate.Year(), int(endDatePrevMonthDate.Month()))
	//获取开始日期的的月份总天数
	startDateMonthDays := getMonthDay(startDate.Year(), int(startDate.Month()))

	//判断，截止月是否完全被选中，如果相等，那么代表截止月份全部天数被选择
	if endDate.Day() == endDateDays {
		numDay = startDateMonthDays - startDate.Day() + 1

		//如果剩余天数正好与开始日期的天数是一致的，那么月份加1
		if numDay == startDateMonthDays {
			numMonth++
			numDay = 0
			//超过月份了，那么年份加1
			if numMonth == 12 {
				numYear++
				numMonth = 0
			}
		}
	} else {
		numDay = endDate.Day() - startDate.Day() + 1
	}

	//天数小于0，那么向月份借一位
	if numDay < 0 {
		//向上一个月借一个月的天数
		numDay += endDatePrevMonthDays

		//总月份减去一个月
		numMonth = numMonth - 1
	}

	//月份小于0，那么向年份借一位
	if numMonth < 0 {
		//向上一个年借12个月
		numMonth += 12

		//总年份减去一年
		numYear = numYear - 1
	}
	if numYear < 0 {
		err = errors.New("日期异常")
		return
	}

	if numYear > 0 {
		beetweenDay += fmt.Sprint(numYear, "年")
	}
	if numMonth > 0 {
		beetweenDay += fmt.Sprint(numMonth, "个月")
	}
	if numDay > 0 {
		beetweenDay += fmt.Sprint(numDay, "天")
	}
	return
}

// 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
}

// 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
}

// 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):])
}

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
}

// GetNowWeekMonday 获取上一周周一的时间
func GetPreWeekMonday() time.Time {
	nowMonday := GetNowWeekMonday()
	return nowMonday.AddDate(0, 0, -7)
}

// GetNowWeekLastDay 获取上一周最后一天的时间
func GetPreWeekLastDay() time.Time {
	nowSunday := GetNowWeekLastDay()
	return nowSunday.AddDate(0, 0, -7)
}

// GetNextWeekMonday 获取下一周周一的时间
func GetNextWeekMonday() time.Time {
	nowMonday := GetNowWeekMonday()
	return nowMonday.AddDate(0, 0, 7)
}

// GetNextWeekLastDay 获取下一周最后一天的时间
func GetNextWeekLastDay() time.Time {
	nowSunday := GetNowWeekLastDay()
	return nowSunday.AddDate(0, 0, 7)
}

// 处理真实姓名，隐藏中间的部分，如：张*，张*将
func DealRealName(realName string) string {
	if realName == "" {
		return ""
	}
	names := bytes.Runes([]byte(realName))
	fistName := names[0]
	length := len(names)
	if length == 2 {
		return string(fistName) + "*"
	} else if length > 2 {
		lastName := names[length-1]
		return string(fistName) + "*" + string(lastName)
	}
	return realName
}

// Implode php中的implode（用来将int型的切片转为string）
func Implode(idIntList []int) (str string) {
	for _, id := range idIntList {
		str += fmt.Sprint(id, ",")
	}
	str = str[:len(str)-1]
	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(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
}

// Intersection 求两个切片的交集
func Intersection(a []string, b []string) (inter []string) {
	// interacting on the smallest list first can potentailly be faster...but not by much, worse case is the same
	low, high := a, b
	if len(a) > len(b) {
		low = b
		high = a
	}

	done := false
	for i, l := range low {
		for j, h := range high {
			// get future index values
			f1 := i + 1
			f2 := j + 1
			if l == h {
				inter = append(inter, h)
				if f1 < len(low) && f2 < len(high) {
					// if the future values aren't the same then that's the end of the intersection
					if low[f1] != high[f2] {
						done = true
					}
				}
				// we don't want to interate on the entire list everytime, so remove the parts we already looped on will make it faster each pass
				high = high[:j+copy(high[j:], high[j+1:])]
				break
			}
		}
		// nothing in the future so we are done
		if done {
			break
		}
	}
	return
}

// Minus 获取差集
func Minus(a []string, b []string) []string {
	//var inter []string
	inter := make([]string, 0)
	mp := make(map[string]bool)
	for _, s := range a {
		if _, ok := mp[s]; !ok {
			mp[s] = true
		}
	}
	for _, s := range b {
		if _, ok := mp[s]; ok {
			delete(mp, s)
		}
	}
	for key := range mp {
		inter = append(inter, key)
	}
	return inter
}

// IntArr2joinString []int转字符串
func IntArr2joinString(arr []int, sep string) string {
	if len(arr) == 0 {
		return ""
	}
	strArr := make([]string, 0)
	for _, v := range arr {
		strArr = append(strArr, strconv.Itoa(v))
	}
	return strings.Join(strArr, sep)
}

// GetOneMonthFirstDay 获取某月的第一天的时间
func GetOneMonthFirstDay(time2 time.Time) time.Time {
	nowMonthFirstDay := time.Date(time2.Year(), time2.Month(), 1, 0, 0, 0, 0, time.Now().Location())
	return nowMonthFirstDay
}

// GetOneMonthLastDay 获取某月最后一天的时间
func GetOneMonthLastDay(time2 time.Time) time.Time {
	nowMonthLastDay := time.Date(time2.Year(), time2.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
}

func GetReportContentTextSub(content string) (contentSub string, err error) {
	content = html.UnescapeString(content)
	doc, err := goquery.NewDocumentFromReader(strings.NewReader(content))
	docText := doc.Text()
	bodyRune := []rune(docText)
	bodyRuneLen := len(bodyRune)
	if bodyRuneLen > 200 {
		bodyRuneLen = 200
	}
	body := string(bodyRune[:bodyRuneLen])
	contentSub = body
	contentSub = strings.Replace(body, "Powered by Froala Editor", "", -1)
	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, ",")
}

// 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
}

// ReplaceSpaceAndWrap 去除空格跟换行
func ReplaceSpaceAndWrap(str string) string {
	// 去除空格
	str = strings.Replace(str, " ", "", -1)
	// 去除换行符
	str = strings.Replace(str, "\n", "", -1)
	return str
}

// JoinStr2IntArr 拼接字符串转[]int
func JoinStr2IntArr(str, sep string) (arr []int) {
	arr = make([]int, 0)
	if str == "" {
		return
	}
	if sep == "" {
		sep = ","
	}
	strArr := strings.Split(str, sep)
	if len(strArr) == 0 {
		return
	}
	for i := range strArr {
		v, e := strconv.Atoi(strArr[i])
		// int2str此处过滤掉无效int
		if e != nil {
			continue
		}
		arr = append(arr, v)
	}
	return
}

// 字符串转换为time类型
func StrDateToDate(strTime string) time.Time {
	timeLayout := "2006-01-02"           //转化所需模板
	loc, _ := time.LoadLocation("Local") //重要：获取时区
	resultTime, _ := time.ParseInLocation(timeLayout, strTime, loc)
	return resultTime
}

// 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
}

// 去除非中文字符串
func StrFilterNonChinese(src *string) {
	var hzRegexp = regexp.MustCompile("^[\u4e00-\u9fa5]$")
	strn := ""
	for _, c := range *src {
		if hzRegexp.MatchString(string(c)) {
			strn += string(c)
		}
	}

	*src = strn
}

// MinusInt 获取两个[]int差集
func MinusInt(a []int, b []int) []int {
	var diff []int
	mpA, mpB := make(map[int]bool), make(map[int]bool)

	for _, v := range a {
		mpA[v] = true
	}
	for _, v := range b {
		mpB[v] = true
	}
	for _, s := range a {
		if !mpB[s] {
			diff = append(diff, s)
		}
	}
	for _, s := range b {
		if !mpA[s] {
			diff = append(diff, s)
		}
	}
	return diff
}

// 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]
}

// FormatFileSize 字节的单位转换 保留两位小数
func FormatFileSize(fileSize int64) (size string) {
	if fileSize < 1024 {
		return fmt.Sprintf("%.2fB", float64(fileSize)/float64(1))
	} else if fileSize < (1024 * 1024) {
		return fmt.Sprintf("%.2fKB", float64(fileSize)/float64(1024))
	} else if fileSize < (1024 * 1024 * 1024) {
		return fmt.Sprintf("%.2fMB", float64(fileSize)/float64(1024*1024))
	} else if fileSize < (1024 * 1024 * 1024 * 1024) {
		return fmt.Sprintf("%.2fGB", float64(fileSize)/float64(1024*1024*1024))
	} else if fileSize < (1024 * 1024 * 1024 * 1024 * 1024) {
		return fmt.Sprintf("%.2fTB", float64(fileSize)/float64(1024*1024*1024*1024))
	} else { //if fileSize < (1024 * 1024 * 1024 * 1024 * 1024 * 1024)
		return fmt.Sprintf("%.2fPB", float64(fileSize)/float64(1024*1024*1024*1024*1024))
	}
}

func GetDurationFormatBySecond(sec int) (formatString string) {
	if sec == 0 {
		formatString = "0分钟"
		return
	} else if sec <= 60 && sec > 0 {
		formatString = "1分钟"
		return
	}

	duration := time.Duration(int64(sec)) * time.Second
	h := int(duration.Hours())
	m := int(duration.Minutes()) % 60
	//s := int(duration.Seconds()) % 60
	if h > 0 {
		formatString = fmt.Sprintf("%d小时", h)
	}
	if m > 0 {
		formatString += fmt.Sprintf("%d分钟", m)
	}
	//if s > 0 {
	//	formatString += fmt.Sprintf("%d秒", s)
	//}
	return
}

// 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
}

// 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, tmpStartDate, tmpEndDate string) (startDate, endDate string) {
	startDate = tmpStartDate
	endDate = tmpEndDate
	currDate := time.Now()
	switch dateType {
	case 1:
		startDate = currDate.AddDate(0, -3, 0).Format(FormatDate)
		endDate = ""
	case 2:
		startDate = currDate.AddDate(0, -6, 0).Format(FormatDate)
		endDate = ""
	case 3:
		startDate = currDate.AddDate(-1, 0, 0).Format(FormatDate)
		endDate = ""
	case 4:
		startDate = currDate.AddDate(-2, 0, 0).Format(FormatDate)
		endDate = ""
	case 5:
		startDate = currDate.AddDate(-3, 0, 0).Format(FormatDate)
		endDate = ""
	case 6:
		startDate = currDate.AddDate(-5, 0, 0).Format(FormatDate)
		endDate = ""
	case 7:
		startDate = currDate.AddDate(-10, 0, 0).Format(FormatDate)
		endDate = ""
	}

	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
}