----------------------------------------------------------- Lua面向对象3local smartMan = {    name = "Tinywan",    age = 26,    money = 800000,    sayHello = function()        print("Tinywan say 大家好")    end}local t1 = {}local mt = {    __index = smartMan,    __newindex = function(table, key, value)        print(key .. "字段不存在不要试图给他赋值")    end}setmetatable(t1, mt)t1.sayHello = function()    print("HAHA")endt1.sayHello()--- 输出结果-- sayHello字段不存在不要试图给他赋值-- Tinywan say 大家好

 

----------------------------------------------------------- Lua面向对象3local smartMan = {    name = "none"}local other = {    name = "大家好，我是无赖的table"}local t1 = {}local mt = {    __index = smartMan,    __newindex = other}setmetatable(t1, mt)print("other的名字，赋值前：" .. other.name)t1.name = "峨眉大侠"print("other的名字，赋值后：" .. other.name)print("t1 的名字：" .. t1.name)--- 输出结果-- other的名字，赋值前：大家好，我是无赖的table-- other的名字，赋值后：峨眉大侠-- t1 的名字：none

 

 

 

 

 

有问题

 

 

local 变量不放在全局函数中去

 

以上不需要 return 返回