FactoryModel
2017-04-13 09:26:29 2 举报工厂模式
作者其他创作
大纲/内容
Operation
#double num1#double num2
+ virtual double getResult()
OperationAdd
+override double getResult(){ return num1+num2;}
Operation createOperation();
AddFactory
Operation createOperation(){ return new OperationAdd()}
SubFactory
Operation createOperation(){ return new OperationSub()}
OperationSub
+override double getResult(){ return num1-num2;}
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