大话设计模式学习总结.docx

C#大话设计模式学习总结一、工厂模式面向对象的三个特性：封装，继承和多态1.封装Class Operateprivate double _numberA;private double _numberB;public double NumberAgetreturn _numberA;set_numberA = value;public double _numberBgetreturn _numberB;set_numberB = value;2.继承/父类Class Operationprivate double _numberA;private double _numberB;public double NumberAgetreturn _numberA;set_numberA = value;public double _numberB