策略模式Lua达成
发布时间：2021-11-20 18:48:35 所属栏目：教程 来源：互联网
导读：策略模式Lua实现 Strategy = {} ConcreteStrategyA = {} ConcreteStrategyB = {} ConcreteStrategyC = {} Context = {strategy = nil} function Strategy:new(o) o = o or {} setmetatable(o,self) self.__index = self return o; end function Strategy:Algo
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策略模式Lua实现 Strategy = {} ConcreteStrategyA = {} ConcreteStrategyB = {} ConcreteStrategyC = {} Context = {strategy = nil} function Strategy:new(o) o = o or {} setmetatable(o,self) self.__index = self return o; end function Strategy:AlgorithmInterface() print("逻辑接口") end ConcreteStrategyA = Strategy:new() function ConcreteStrategyA:AlgorithmInterface() print("具体策略A") end function Context:new(o,s) o = o or {} setmetatable(o,self) self.__index = self if s ~= nil then o.strategy = s end return o; end function Context:ContextInterface() self.strategy:AlgorithmInterface() end context = Context:new({},ConcreteStrategyA:new()) context:ContextInterface() 上面的代码的输出结果是：具体的策略A 如果你把 function ConcreteStrategyA:AlgorithmInterface() 注释掉，输出的结果应该就会是：逻辑接口。  （编辑：常州站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
