如何用 Go 语言处理 Excel 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) {
    // 定义可能的日期格式
    formats := []string{
        "20060102",
        "2006-01-02",
        "2006/01/02",
    }

    var parseddate time.time
    var err error

    // 尝试按顺序解析每种格式
    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)
}

Parsed date: 2023-03-31 00:00:00 +0000 UTC
Parsed date: 2023-03-31 00:00:00 +0000 UTC
Parsed date: 2023-03-31 00:00:00 +0000 UTC