设计模式汇总

简单工厂模式

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运算类

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public class Operation
{
    private double _numberA = 0;
    private double _numberB = 0;
        
    public double NumberA
    {
        get { return _numberA; }
        set { _numberA = value; }
    }
    public double NumberB
    {
        get { return _numberB; }
        set { _numberB = value; }
    }
    public virtual double GetResult()
    {
        double result = 0;
        return result;
    }
}

工厂类

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客户端

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Operation oper;
oper = OperationFactory.createOperate("+");
oper.NumberA = 1;
oper.NumberB = 2;
double result = oper.GetResult();