通过函数闭包的方式来实现面向对象

1 -- 通过函数闭包的方式来实现面向对象 2  3 function People(name) 4     local self = {} 5     local function init() 6       self.name = name 7     end 8      9     self.sayHi = function()10       print("Hello"..self.name)11     end12     init()13     return self14 end15 16 --local p = People("XiaoLi")17 --p:sayHi()18 19 -- 继承20 function Man(name)21     22     local function init()23       24     end25     26     local self = People(name)27     28     self.sayHi()  -- 调用父类的函数29     30     self.sayHi = function()31       print("重写父类的函数 sayHi")32     end33     return self34 end35 36 local m = Man("隔壁老王")37 m:sayHi()

 

通过复制表的方式来实现面向对象

1 -- Lua语言面向对象之复制表的方式面向对象 2  3 function clone(tab) 4   local ins = {} 5   for key, var in pairs(tab) do 6       ins[key] = var  7   end 8   return ins 9 end10 11 function copy(dist,tab)12   for key, var in pairs(tab) do13       dist[key] = var14   end15 end16 17 People ={}18 19 function People.sayHi(self)20     print("People sayHi"..self.name) -- .. 表示字符串连接21 end22 23 People.new = function(name)24   local self = clone(People)25   self.name = name26   27   return self28 end29 --30 --local p = clone(People)31 --p.sayHi()32 33 local p = People.new("Jinpp")34 -- p.sayHi(p)    -- 运行结果 People sayHiJinpp35 p:sayHi()   -- 运行结果 People sayHiJinpp36 37 38 -- 类的继承39 Man = {}40 Man.new = function(name)41   local  self = People.new(name)42   copy(self,Man)43   return self44 end45 --46 Man.sayHello = function()47   print("Man say Hello")48 end49 50 -- 函数的重写51 Man.sayHi = function(self)52   print("Man sayHi "..self.name)53 end54 55 local m = Man.new("Lisi")56 m:sayHello()57 m:sayHi()

 

蛮简单的特别好理解。2016年01月24日21:43:39