lua字符串与十六进制数据转换

使用库函数进行转换：
在线地址：https://wiki.luatos.com/_static/luatos-emulator/lua.html

function fromHex(hex)
    --滤掉分隔符
    local hex = hex:gsub("[%s%p]", ""):upper()
    return hex:gsub("%x%x", function(c)
        return string.char(tonumber(c, 16))
    end)
end

function toValue(str)
    return fromHex(str:gsub("%x", "0%1"))
end

local s="123456ef"
local hexs=toValue(s)
for i=1,8 do
    print(i, "ascii: ", s:byte(i), ", hex: ", hexs:byte(i))
end

执行结果：

[01:09:36] 虚拟机初始化完毕
[01:09:36] 1	ascii: 	49	, hex: 	1
[01:09:36] 2	ascii: 	50	, hex: 	2
[01:09:36] 3	ascii: 	51	, hex: 	3
[01:09:36] 4	ascii: 	52	, hex: 	4
[01:09:36] 5	ascii: 	53	, hex: 	5
[01:09:36] 6	ascii: 	54	, hex: 	6
[01:09:36] 7	ascii: 	101	, hex: 	14
[01:09:36] 8	ascii: 	102	, hex: 	15
[01:09:36] 虚拟机已停止运行