Lua 5.3.3 在C语言中写个库 导入到Lua中

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

#include <iostream>

#include <stdio.h>
#include <stdlib.h>
#include "lua.hpp"
using namespace std;


int A(lua_State *L)
{
cout << "C A" << endl;
lua_pushstring(L, "A");
return 1;
}


int B(lua_State *L)
{
cout << "C B" << endl;
lua_pushstring(L, "B");
return 1;
}

luaL_Reg apis[] = {
{"A", A},