Lua 5.3.3 在C语言中保存Lua中的函数 并调用它

/***************************************************C++  main.cpp**************************************************/

#include <iostream>

#include <stdio.h>
#include <stdlib.h>
#include "lua.hpp"


using namespace std;


int FOO = LUA_REFNIL;
int dosomething(lua_State *L)
{
cout << "insid c code" << endl;
FOO = luaL_ref(L, LUA_REGISTRYINDEX); //将从Lua脚本中传入的Lua函数保存起来
return 0;
}


int main()
{
lua_State *L = luaL_newstate();
luaL_openlibs(L);
lua_register(L, "dosomething", dosometh