Go 语言如何处理 Excel 文件中多种日期格式？

package main

import (
    "fmt"
    "time"
)

func main() {
    dates := []string{
        "20230331",
        "2023-03-31",
        "2023/03/31",
    }

    for _, date := range dates {
        parsedDate, err := parseDate(date)
        if err != nil {
            fmt.Println("Error parsing date:", err)
        } else {
            fmt.Println("Parsed date:", parsedDate)
        }
    }
}

func parseDate(input string) (time.Time, error) {
    formats := []string{
        "20060102",
        "2006-01-02",
        "2006/01/02",
    }

    var parsedDate time.Time
    var err error

    for _, format := range formats {
        parsedDate, err = time.Parse(format, input)
        if err == nil {
            return parsedDate, nil
        }
    }

    return time.Time{}, fmt.Errorf("could not parse date: %s", input)
}