go 将获取文本转换成utf-8

func main() {
	url := "xxx网站"
	resp, err := http.Get(url)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()

	if resp.StatusCode != http.StatusOK {
		fmt.Println("Error: status code", resp.StatusCode)
		return
	}

	all, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		panic(err)
	}

	fmt.Printf("%s \n", all)
}

// 将收到的GBK内容转换成utf-8
utf8Reader := transform.NewReader(resp.Body, simplifiedchinese.GBK.NewDecoder())

// 将对应格式文本转换成utf-8
func DecodeEncoding(r io.Reader) *transform.Reader {
	e := determineEncodeing(r)
	return transform.NewReader(r, e.NewDecoder())
}

// 判断传输来的文本的字符集格式是什么
func determineEncodeing(r io.Reader) encoding.Encoding {
	peek, err := bufio.NewReader(r).Peek(1024)
	if err != nil {
		panic(err)
	}
	determineEncoding, _, _ := charset.DetermineEncoding(peek, "")
	return determineEncoding
}