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Lua一日游:(4)面向对象——函数闭包形式

 2 years ago
source link: https://changkun.de/blog/posts/lua-4/
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Lua一日游:(4)面向对象——函数闭包形式

Published at:

2014-03-09

  |  

Reading: 195 words ~1min

  |  

PV/UV: 3/3

我们直接来看代码：

-- 函数闭包来实现面向对象

  -- 运行速度略慢与复制表的方式, 不过可以忽略不计
function Car(name)
  local self = {} -- 函数内部的一个local value
  local function init()
    self.name = name
  end
  self.introCar = function()
    print("hello "..self.name)
  end
  init()
  return self
end

  -- 构造了一个Car对象
local p = Car("bengchi")
p:introCar()

  -- 继承的实现，如果我们假设Plane可以继承自Car的话
function Plane(name)
  local self = Car(name)

-- local function init() --也可以复写
-- end

  self.introPlane = function()
    print("hi "..self.name)
  end

  return self
end

local m = Plane("feiji")
m:introCar();
m:introPlane();

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