Go或者C中调用Lua业务脚本，实现终端应用的热更新机制

package main

import (
	"fmt"
	"github.com/sryanyuan/luago"
	"strconv"
	"sync"
)

func export(L luago.Lua_Handle) int {
	//	get args from lua
	num := int(luago.Lua_tonumber(L, -2))
	str := luago.Lua_tostring(L, -1)

	fmt.Printf("this is a luago func\n")
	//	push value to lua
	val := str + strconv.Itoa(num)
	luago.Lua_pushstring(L, val)
	return 1
}

func main() {
	var wg sync.WaitGroup
	wg.Add(1) //

	L := luago.LuaGo_newState()
	fmt.Printf("lua ver:%#v\n", luago.Lua_version(L.GetHandle()))
	L.OpenStdLibs()

	L.LuaGo_PushGoFunction("export", export)

	luago.LuaGo_stackDump(L.GetHandle())
	ret := luago.LuaL_dofile(L.GetHandle(), "test1.lua")

	fmt.Printf("ret:%d\n", ret)
	//	invoke
	ret = luago.LuaL_dostring(L.GetHandle(), ` 
		local val = export(1, "hello luago")
		print(val)
		shanghu = string.format("%012u",123456789011) 
		print(shanghu)
	`)

	fmt.Printf("ret:%d\n", ret)

	luago.LuaGo_stackDump(L.GetHandle())

	ret = luago.LuaL_dofile(L.GetHandle(), "test.lua")

	luago.LuaGo_stackDump(L.GetHandle())
	//wg.Wait() // 等待
}

--this is a demo:
----------------------------------------------------

print("this is a lua script,begin:")
--通信服务地址
ip= "127.0.0.1"
--通信服务端口
port = 5050

function CONNECT( ip,port )
	-- body
	print("this is CONNECT,"..ip..port)
end

function TxData( tx )
	-- body
	print("this is TxData,"..tx)
end

function DISCONNECT( ... )
	-- body
	print("this is DISCONNECT")
end

--连接到通信前置服务
ret = CONNECT(ip,port)           --建立连接
-------------------------------------------  
--通讯报文规范是基于TCP/IP 通讯协议而设计，支持二进制字节流。采用统一的消息类型标识识别方式进行处理
--通信协议格式: MTI+STI+DBL+DATA
--签到报文 ,
MTI = 'B001'    --消息类型标识
STI = '52'      --请求类型标识
DBL = '0000001C'      --报文体长度
DATA = ''       --数据域

shanghu = string.format("%012d",3456789012) 
poscode = string.format("%016d",34567890112233)
samcode = '313233343536'
optcode = '3132333435363738'

DATA = shanghu..poscode..samcode..optcode
DBL = string.format("%08x",string.len(DATA)/2)
TX = MTI .. STI .. DBL .. DATA

ret,rcv = TxData(TX)      --调用接口TxData(str),实际会以二进制的字节流发送报文
--print(rcv)

--黑名单下载
MTI = 'B004'
blackver = '00000000'
DATA = blackver .. poscode
DBL = string.format("%02x",string.len(DATA)/2)
TX = MTI .. STI .. DBL .. DATA

ret,rcv = TxData(TX)           
print(rcv)

----lua test go function 
print("this is go function test by lua")

--LtestGofunc0(7,8,9)

--LtestGofunc1()


DISCONNECT()                          --断开连接

print("lua script over")