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lua_gettable
lua_getglobal(L,"mytable") <== push mytable
lua_pushnumber(L,1)??????? <== push key 1
lua_gettable(L,-2)???????? <== pop key 1,push mytable[1]
lua_settable
lua_getglobal(L,1)??????? <== push key 1
lua_pushstring(L,"abc")??? <== push value "abc"
lua_settable(L,-3)???????? <== mytable[1] = "abc",pop key & value
lua_rawget:
用法同lua_gettable,但更快(因为当key不存在时不用访问元方法__index)
lua_rawset
:
用法同lua_settable,但更快(因为当key不存在时不用访问元方法__newindex)
lua_rawgeti必须为数值键
lua_getglobal(L,"mytable") <== push mytable
lua_rawgeti(L,-1,?1)?????? <==?
push mytable[1]，作用同下面两行调用
--lua_pushnumber(L,1)????? <== push key 1
--lua_rawget
(L,-2)????????? <== pop key 1,push mytable[1]
lua_rawseti必须为数值键
lua_getglobal(L,"mytable") <== push mytable
lua_pushstring(L,"abc")??? <== push value "abc"
lua_rawseti(L,-2,1)?????? <== mytable[1] = "abc",pop value "abc"
lua_getfield必须为字符串键
lua_getglobal(L,"mytable") <== push mytable
lua_getfield(L,?"x")??? <==?
push mytable["x"]，作用同下面两行调用
--lua_pushstring(L,"x")??? <== push key "x"
--lua_gettable(L,-2)??????? <== pop key "x",push mytable["x"]
lua_setfield必须为字符串键
lua_getglobal(L,"abc")??? <== push value "abc"
lua_setfield(L,"x")??? <== mytable["x"] = "abc",pop value "abc"
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