Go -- socket read的内容以16进制输出

buf := make([]byte, )

reqLen, err :=  conn.Read(buf)

// 遍历, 转为16进制

    buffer := new(bytes.Buffer)

    for _, b := range buf[:reqLen] {

        s := strconv.FormatInt(int64(b&0xff), )

        if len(s) ==  {

            buffer.WriteString("")

        }

        buffer.WriteString(s)

    }

    // 转化为字符串

    fmt.Println(buffer.String())