如何将多维表从C函数返回到lua？
我需要像这样把一张桌子还给Lua：如何将多维表从C函数返回到lua？,c,arrays,lua,lua-table,C,Arrays,Lua,Lua Table,我需要像这样把一张桌子还给Lua： { [0] = { ["field1"] = "1", ["field2"] = "2" , ["field3"] = "3" }, [1] = { ["field1"] = "10" , ["field2"] = "20", ["field3"] = "30" } } 但是从C的角度来看，使用lua_*函数 另外，0和1只是一个示例，它可能包含更多类似的数组。 任何人都可以帮我吗？使用和的简单示例 我以为你在写某种包装。但还是差不多 /*
{
[0] = { ["field1"] = "1", ["field2"] = "2" , ["field3"] = "3" },
[1] = { ["field1"] = "10" , ["field2"] = "20", ["field3"] = "30" }
}
/* Pushes multidimentional table on top of Lua VM stack. */
int
l_push_multidim_table(lua_State *L)
{
/* Creates parent table of size 2 array elements: */
lua_createtable(L, 2, 0);
/* Puts key of the first child table on-top of Lua VM stack: */
lua_pushnumber(L, 1);
/*Creates first child table of size 3 non-array elements: */
lua_createtable(L, 0, 3);
/* Fills the first child table: */
lua_pushnumber(L, 1);
lua_setfield(L, -2, "field1");
lua_pushnumber(L, 2);
/* setfield() pops the value from Lua VM stack. */
lua_setfield(L, -2, "field2");
lua_pushnumber(L, 3);
lua_setfield(L, -2, "field3");
/* Remember, child table is on-top of the stack.
* lua_settable() pops key, value pair from Lua VM stack. */
lua_settable(L, -3);
/* Pushes they key value for the second child table: */
lua_pushnumber(L, 2);
/*Creates second child table of size 3 non-array elements: */
lua_createtable(L, 0, 3);
/* Fills the second child table: */
lua_pushnumber(L, 10);
lua_setfield(L, -2, "field1");
lua_pushnumber(L, 20);
lua_setfield(L, -2, "field2");
lua_pushnumber(L, 30);
lua_setfield(L, -2, "field3");
/* Remember, child table is still on-top of the stack.
* lua_settable pops the key, value pair from Lua VM stack
* And puts child table into the parent. */
lua_settable(L, -3);
/* Returns number of output tables:
* (1 multidimentional) */
return 1;
}
/* Pushes multidimentional table on top of Lua VM stack. */
int
l_push_multidim_table(lua_State *L)
{
/* Creates parent table of size 2 array elements: */
lua_createtable(L, 2, 0);
/* Puts key of the first child table on-top of Lua VM stack: */
lua_pushnumber(L, 1);
/*Creates first child table of size 3 non-array elements: */
lua_createtable(L, 0, 3);
/* Fills the first child table: */
lua_pushnumber(L, 1);
lua_setfield(L, -2, "field1");
lua_pushnumber(L, 2);
/* setfield() pops the value from Lua VM stack. */
lua_setfield(L, -2, "field2");
lua_pushnumber(L, 3);
lua_setfield(L, -2, "field3");
/* Remember, child table is on-top of the stack.
* lua_settable() pops key, value pair from Lua VM stack. */
lua_settable(L, -3);
/* Pushes they key value for the second child table: */
lua_pushnumber(L, 2);
/*Creates second child table of size 3 non-array elements: */
lua_createtable(L, 0, 3);
/* Fills the second child table: */
lua_pushnumber(L, 10);
lua_setfield(L, -2, "field1");
lua_pushnumber(L, 20);
lua_setfield(L, -2, "field2");
lua_pushnumber(L, 30);
lua_setfield(L, -2, "field3");
/* Remember, child table is still on-top of the stack.
* lua_settable pops the key, value pair from Lua VM stack
* And puts child table into the parent. */
lua_settable(L, -3);
/* Returns number of output tables:
* (1 multidimentional) */
return 1;
}
/* Pushes multidimentional table on top of Lua VM stack. */
int
l_push_multidim_table(lua_State *L)
{
/* Creates parent table of size 2 array elements: */
lua_createtable(L, 2, 0);
/* Puts key of the first child table on-top of Lua VM stack: */
lua_pushnumber(L, 1);
/*Creates first child table of size 3 non-array elements: */
lua_createtable(L, 0, 3);
/* Fills the first child table: */
lua_pushnumber(L, 1);
lua_setfield(L, -2, "field1");
lua_pushnumber(L, 2);
/* setfield() pops the value from Lua VM stack. */
lua_setfield(L, -2, "field2");
lua_pushnumber(L, 3);
lua_setfield(L, -2, "field3");
/* Remember, child table is on-top of the stack.
* lua_settable() pops key, value pair from Lua VM stack. */
lua_settable(L, -3);
/* Pushes they key value for the second child table: */
lua_pushnumber(L, 2);
/*Creates second child table of size 3 non-array elements: */
lua_createtable(L, 0, 3);
/* Fills the second child table: */
lua_pushnumber(L, 10);
lua_setfield(L, -2, "field1");
lua_pushnumber(L, 20);
lua_setfield(L, -2, "field2");
lua_pushnumber(L, 30);
lua_setfield(L, -2, "field3");
/* Remember, child table is still on-top of the stack.
* lua_settable pops the key, value pair from Lua VM stack
* And puts child table into the parent. */
lua_settable(L, -3);
/* Returns number of output tables:
* (1 multidimentional) */
return 1;
}
/* Pushes multidimentional table on top of Lua VM stack. */
int
l_push_multidim_table(lua_State *L)
{
/* Creates parent table of size 2 array elements: */
lua_createtable(L, 2, 0);
/* Puts key of the first child table on-top of Lua VM stack: */
lua_pushnumber(L, 1);
/*Creates first child table of size 3 non-array elements: */
lua_createtable(L, 0, 3);
/* Fills the first child table: */
lua_pushnumber(L, 1);
lua_setfield(L, -2, "field1");
lua_pushnumber(L, 2);
/* setfield() pops the value from Lua VM stack. */
lua_setfield(L, -2, "field2");
lua_pushnumber(L, 3);
lua_setfield(L, -2, "field3");
/* Remember, child table is on-top of the stack.
* lua_settable() pops key, value pair from Lua VM stack. */
lua_settable(L, -3);
/* Pushes they key value for the second child table: */
lua_pushnumber(L, 2);
/*Creates second child table of size 3 non-array elements: */
lua_createtable(L, 0, 3);
/* Fills the second child table: */
lua_pushnumber(L, 10);
lua_setfield(L, -2, "field1");
lua_pushnumber(L, 20);
lua_setfield(L, -2, "field2");
lua_pushnumber(L, 30);
lua_setfield(L, -2, "field3");
/* Remember, child table is still on-top of the stack.
* lua_settable pops the key, value pair from Lua VM stack
* And puts child table into the parent. */
lua_settable(L, -3);
/* Returns number of output tables:
* (1 multidimentional) */
return 1;
}
注意：在Lua中，数组值通常从1开始。所以，我用这种方式整理了您的示例结构。总而言之，它应该工作得很好。为什么标记为
c++c++c++c++？我标记为c，不是吗？