Lua编程示例（六）： C语言调用Lua函数
C++端：
#include"stdafx.h"
lua_State*L;
voidload_lua(lua_State**L,char*filename){
*L=luaL_newstate();
luaL_openlibs(*L);
if(luaL_loadfile(*L,filename)||lua_pcall(*L,0,0,0)){
luaL_error(*L,"loadfileerror!%s",lua_tostring(*L,-1));
}
}
int_tmain(intargc,_TCHAR*argv[])
{
load_lua(&L,"raw.lua");//此处若直接传入L会出错
lua_getglobal(L,"gettable");
if(lua_pcall(L,0,1,0)!=0){
luaL_error(L,"pcallwrong%s",lua_tostring(L,-1));
}
luaL_checktype(L,1,LUA_TTABLE);
intn=lua_objlen(L,1);
printf("n=%d\n",n);
lua_pushstring(L,"ee");
lua_rawseti(L,1,5);//t[n]=v,n为第三个参数，v是栈顶元素
n=lua_objlen(L,1);
printf("n=%d\n",n);
inti;
for(i=1;i<=n;i++){
lua_rawgeti(L,1,i);
printf("%s\n",lua_tostring(L,-1));
}
return0;
}
lua脚本：
functiongettable()
tb={"aa","bb","cc","dd"}
returntb
end
运行输出的结果为：
n=4 n=5 aa bb cc dd ee