golang 인코딩 변환과 관련된 일반적인 문제에 대한 솔루션

package main

import (
    "golang.org/x/text/encoding/simplifiedchinese"
    "golang.org/x/text/transform"
    "io/ioutil"
    "os"
)

func utf8ToGBK(utf8str string) (string, error) {
    h := simplifiedchinese.GBK.NewEncoder()
    out, _, err := transform.String(h, utf8str)
    if err != nil {
        return "", err
    }
    return out, nil
}

func main() {
    utf8str := "你好，世界"
    gbkstr, err := utf8ToGBK(utf8str)
    if err != nil {
        panic(err)
    }
    println(gbkstr)
}

package main

import (
    "github.com/axgle/mahonia"
    "io/ioutil"
)

func convertEncoding(filename, toEncoding string) error {
    content, err := ioutil.ReadFile(filename)
    if err != nil {
        return err
    }

    dec := mahonia.NewDecoder("gb2312")
    utf8Str := dec.ConvertString(string(content))

    err = ioutil.WriteFile(filename, []byte(utf8Str), 0666)
    if err != nil {
        return err
    }

    return nil
}

func main() {
    filename := "test.txt"
    err := convertEncoding(filename, "utf-8")
    if err != nil {
        panic(err)
    }
}