package md5x

import (
	"crypto/md5"
	"encoding/hex"
	"io"
	"os"
)

// 字符串的md5
func Md5String(value string) string {
	m := md5.New()
	m.Write([]byte(value))
	return hex.EncodeToString(m.Sum(nil))
}

// 文件的md5
func Md5File(path string) (string, error) {
	file, err := os.Open(path)
	if err != nil {
		return "", err
	}
	defer file.Close()

	hash := md5.New()
	io.Copy(hash, file)
	return hex.EncodeToString(hash.Sum(nil)), nil
}