Golang BCD码和string互转

package main

import (
	"fmt"
	"strconv"
	"strings"
)

func main()  {
	TestBcd2Number()
}

func TestBcd2Number() {
	bcd := Hex2Byte("ffff1012")
	fmt.Printf("bcd: %x\n", bcd)
	number := Bcd2Number(bcd)
	fmt.Printf("bcd2number: %v\n", number)
	b := Number2bcd(number)
	fmt.Printf("number2bcd: %x\n", b)
}

func Bcd2Number(bcd []byte) string {
	var number string
	for _, i := range bcd {
		number += fmt.Sprintf("%02X", i)
	}
	pos := strings.LastIndex(number,"F")
	if pos == 8 {
		return "0"
	}
	return number[pos + 1:]
}

func Number2bcd(number string) []byte {
	var rNumber = number
	for i := 0; i < 8 - len(number); i++ {
		rNumber = "f" + rNumber
	}
	bcd := Hex2Byte(rNumber)
	return bcd
}

func Hex2Byte(str string) []byte {
	slen := len(str)
	bHex := make([]byte, len(str)/2)
	ii := 0
	for i := 0; i < len(str); i = i + 2 {
		if slen != 1 {
			ss := string(str[i]) + string(str[i+1])
			bt, _ := strconv.ParseInt(ss, 16, 32)
			bHex[ii] = byte(bt)
			ii = ii + 1
			slen = slen - 2
		}
	}
	return bHex
}