[Lua]Lua調用C/C++函數/庫(動態連結方式)

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建立DLL空的win32工程，建立test.cpp檔案，內容如下

/*Lua調用C/C++函數/庫(動態連結方式)*/#include<iostream>using namespace std;#include<lua.hpp>static int math_abs(lua_State *L){    lua_pushnumber(L, abs((int)luaL_checknumber(L, 1)));    return 1;}static int math_cos(lua_State *L){    lua_pushnumber(L, cos((double)luaL_checknumber(L, 1)));    return 1;}static int math_sin(lua_State *L){    lua_pushnumber(L, sin((double)luaL_checknumber(L, 1)));    return 1;}static const luaL_reg mathlib[] = {    { "abs", math_abs },    { "cos", math_cos },    { "sin", math_sin },    { NULL, NULL }};//dll通過函數luaI_openlib匯出，然後lua使用package.loadlib匯入庫函數extern "C" __declspec(dllexport) int LuaAPIDLL(lua_State* L)//需要注意的地方,此函數命名與庫名一致{    luaI_openlib(L,"DY_MATH",mathlib,0);    return 1;}

lualoadlib.lua檔案

--region lualoadlib.lualocal libpath="./../Debug/LuaAPIDLL.dll"local loadlibfunc=package.loadlib(libpath,"LuaAPIDLL")loadlibfunc()function COS(a)    print("called COS in lua script")    return DY_MATH.cos(a)endfunction SIN(a)    print("called SIN in lua script")    return DY_MATH.sin(a)endprint(COS(60*3.1415926/180))print(SIN(30))os.execute("pause") --直接雙擊此檔案，cmd視窗不會消失--endregion

直接雙擊lualoadlib.lua檔案，結果如下

[Lua]Lua調用C/C++函數/庫(動態連結方式)