参考文章

func handleResponse(resp *http.Response) (string, error) {
	respBytes, err := ioutil.ReadAll(resp.Body)
	defer resp.Body.Close()
	if err != nil {
		fmt.Println(err.Error())
		return "", err
	}
	//byte数组直接转成string，优化内存
	str := (*string)(unsafe.Pointer(&respBytes))
	result := unicode2utf8(*str)
	fmt.Println(result)
	return result, nil
}
func unicode2utf8(source string) string {
	var res = []string{""}
	sUnicode := strings.Split(source, "\\u")
	var context = ""
	for _, v := range sUnicode {
		var additional = ""
		if len(v) < 1 {
			continue
		}
		if len(v) > 4 {
			rs := []rune(v)
			v = string(rs[:4])
			additional = string(rs[4:])
		}
		temp, err := strconv.ParseInt(v, 16, 32)
		if err != nil {
			context  = v
		}
		context  = fmt.Sprintf("%c", temp)
		context  = additional
	}
	res = append(res, context)
	return strings.Join(res, "")
}