Go -- php 中的pack("H*", $string) 转换成go

pack("H*", $string) 转化成这样:

//16进制字符串转[]byte
func HexToByte(hex string) []byte {
    length := len(hex) / 2
    slice := make([]byte, length)
    rs := []rune(hex)

    for i := 0; i < length; i++ {
        s := string(rs[i*2 : i*2+2])
        value, _ := strconv.ParseInt(s, 16, 10)
        slice[i] = byte(value & 0xFF)
    }
    return slice
}

oneNet平台的数据校验: 

func CheckSignature(nonce, msg, sign string ) string {
    new_sig := MD5_encrypt(token + nonce + msg)
    fmt.Println(strings.ToUpper(new_sig))
    // upper
    upper := strings.ToUpper(new_sig)
    new_sig = base64.StdEncoding.EncodeToString(HexToByte(upper))
    fmt.Println("byte", []byte(strings.ToUpper(new_sig)));
    fmt.Println("new_sig", new_sig)
    fmt.Println("sign", sign)
    if new_sig == sign {
        return msg
    } else {
        return ""
    }
}

//16进制字符串转[]byte
func HexToByte(hex string) []byte {
    length := len(hex) / 2
    slice := make([]byte, length)
    rs := []rune(hex)

    for i := 0; i < length; i++ {
        s := string(rs[i*2 : i*2+2])
        value, _ := strconv.ParseInt(s, 16, 10)
        slice[i] = byte(value & 0xFF)
    }
    return slice
}