104 lines
2.0 KiB
Go
104 lines
2.0 KiB
Go
package util
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import (
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"errors"
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"math"
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"regexp"
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"strconv"
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"strings"
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"time"
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)
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var ExcelChar = []string{"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"}
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//数字转字母
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func ExcelNumToChar(num int) string {
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var cols string
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v := num
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for v > 0 {
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k := v % 26
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if k == 0 {
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k = 26
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}
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cols = ExcelChar[k-1] + cols
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v = (v - k) / 26
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}
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return cols
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}
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//字母转数字
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func ExcelCharToNum(str string) int {
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num := 0
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for i:=0;i<len(str);i++{
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item := str[i:i+1]
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itemNum := 0
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for index,charItem := range ExcelChar{
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if charItem==item{
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itemNum=index+1
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break
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}
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}
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num+=itemNum*int(math.Pow(26.0,float64(len(str)-i-1)))
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}
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return num
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}
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//表头比对
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func ExcelCompare(target [][]string,compare [][]string)bool{
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if len(compare)==0{
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return true
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}
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if len(target)<len(compare) || len(target[0])<len(compare[0]){
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return false
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}
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for index,row :=range compare{
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for index2,item := range row{
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if target[index][index2]!=item{
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return false
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}
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}
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}
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return true
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}
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//字符串转日期
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//30-12-21
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//2021-01-01 2021-1-1
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//2021/01/01 2021/1/1
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//2021.01.01 2021.1.1
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//20210101
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//55555
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func ExcelStringToDate(str string)(time.Time,error){
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matched,_:=regexp.MatchString(`\d{2}-\d{2}-\d{2}`,str)
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if matched{
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return time.Parse("02-01-06",str)
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}
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items := []string{"-", "/", "."}
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for _, item := range items {
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if strings.Contains(str, item) {
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arr := strings.Split(str, item)
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if len(arr) == 3 {
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if len(arr[1]) == 1 {
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arr[1] = "0" + arr[1]
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}
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if len(arr[2]) == 1 {
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arr[2] = "0" + arr[2]
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}
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str = arr[0] + arr[1] + arr[2]
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return time.Parse("20060102", str)
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} else {
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return time.Time{}, errors.New("日期格式错误：" + str)
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}
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}
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}
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if len(str) == 8 {
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return time.Parse("20060102", str)
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}
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if len(str) == 5 {
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//日期戳
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dayDuration, _ := strconv.ParseInt(str, 10, 64)
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return time.Unix((dayDuration-25569)*24*3600, 0), nil
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}
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return time.Time{}, errors.New("日期格式错误：" + str)
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}
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