6、C++修改Lua中Table的内容

    在C/C++中修改Table和读取Table差别不大。也是非常简单。还是直接上代码：

代码

WriteLuaTable.lua

luat_Test1={a=123, b=456, c=789}luat_Test2={123, 456, 789}

WriteLuaTable.cpp

#include <lua.hpp>static void WriteTableFromKey(lua_State *L, const char* lpszTableName, const char* lpszTableItem, int nVal){    lua_getglobal(L, lpszTableName);    lua_pushnumber(L, nVal);    lua_setfield(L, -2, lpszTableItem);    lua_pop(L, 1);}static void WriteTableFromIndex(lua_State *L, const char* lpszTableName, int index, int nVal){    lua_getglobal(L, lpszTableName);    lua_pushnumber(L, nVal);    lua_rawseti(L, -2, index);    lua_pop(L, 1);}static void ReadTableFromKey(lua_State *L, const char* lpszTableName, const char* lpszTableItem){    lua_getglobal(L, lpszTableName);    lua_pushstring(L, lpszTableItem);    lua_gettable(L, -2);    printf("%s.%s=%d\n", lpszTableName, lpszTableItem, (int)lua_tonumber(L, -1));    lua_pop(L, 2);}static void ReadTableFromIndex(lua_State *L, const char* lpszTableName, int index){    lua_getglobal(L, lpszTableName);    lua_rawgeti(L, -1, index);    printf("%s[%d]=%d\n", lpszTableName, index, (int)lua_tonumber(L, -1));    lua_pop(L, 2);}int main (int argc, char* argv[]){    lua_State *L = lua_open();    luaopen_base(L);    luaL_dofile(L, "WriteLuaTable.lua");    ReadTableFromKey(L, "luat_Test1", "a");    ReadTableFromKey(L, "luat_Test1", "b");    ReadTableFromKey(L, "luat_Test1", "c");    puts("\n");    WriteTableFromKey(L, "luat_Test1", "a", 147); // luat_Test1['a'] = 147    WriteTableFromKey(L, "luat_Test1", "b", 258); // luat_Test1['b'] = 258    WriteTableFromKey(L, "luat_Test1", "c", 369); // luat_Test1['c'] = 369    WriteTableFromKey(L, "luat_Test1", "d", 159); // luat_Test1['d'] = 159    ReadTableFromKey(L, "luat_Test1", "a");    ReadTableFromKey(L, "luat_Test1", "b");    ReadTableFromKey(L, "luat_Test1", "c");    ReadTableFromKey(L, "luat_Test1", "d");    puts("\n--------------------------");    ReadTableFromIndex(L, "luat_Test2", 1);    ReadTableFromIndex(L, "luat_Test2", 2);    ReadTableFromIndex(L, "luat_Test2", 3);    puts("\n");    WriteTableFromIndex(L, "luat_Test2", 1, 147);  // luat_Test2[1] = 147    WriteTableFromIndex(L, "luat_Test2", 2, 258);  // luat_Test2[2] = 258    WriteTableFromIndex(L, "luat_Test2", 3, 369);  // luat_Test2[3] = 369    WriteTableFromIndex(L, "luat_Test2", 4, 159);  // luat_Test2[4] = 159    ReadTableFromIndex(L, "luat_Test2", 1);    ReadTableFromIndex(L, "luat_Test2", 2);    ReadTableFromIndex(L, "luat_Test2", 3);    ReadTableFromIndex(L, "luat_Test2", 4);    lua_close(L);    return 0;}

makefile

CPPFLAG=`pkg-config --cflags lua5.1`LDFLAG=`pkg-config --libs lua5.1`CC=g++all: WriteLuaTableWriteLuaTable : WriteLuaTable.cpp    $(CC) -o $@ $(CPPFLAG) $(LDFLAG) $<

测试环境

类型 值 操作系统 Ubuntu 10.10 lua 5.1.4

运行结果