Lua面向对象 --- 单例

GameManager.lua:

 --单例模式是利用一个全局表来实现的

 GameManager = {}

 Manager = {__index = GameManager}

 function GameManager:new()
     local self = {}
     setmetatable(self,Manager)
     return self
 end

 function GameManager:ShowName()
     print("the is an singleton")
 end

Main.lua:

 require "GameManager"

 gm = GameManager:new()

 gm:ShowName()

 --[[
 运行结果:
 the is an singleton
 --]]