Lua如何将变量从lua推送到C++

Question

你好，我正在尝试将变量从 Lua 推送到 C 函数，我该怎么做？我已经在 Lua 端生成了一个 C++ 对象，但想向该对象函数发送一个数字。但我得到：使用以下字符串加载脚本时出错：

player.lua:2: attempt to index a function value (local 'myPlayer')

player.lua

local myPlayer = Player.new(69) 
myPlayer.testing(myPlayer, 24069) 

player.cpp

int player_test_pos(lua_State* L)
{
    player* myPlayer = l_CheckPlayer(L, 1);
    myPlayer->setPos({ 10, 0, 30 });
    int ok = lua_istable(L, 1);
    std::cout << ok << std::endl;
    ok = lua_isnumber(L, 2);
    std::cout << ok << std::endl;
    return 0;
}