using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace Calculator_Demo.Class_Folder

{

publicabstractclass Calculator

{

publicdoubleNumber1 {get;set; }

publicdoubleNumber2 {get;set; }

publicCalculator(doublea,double b)

{

this.Number1 = a;

this.Number2 = b;

}

///<summary>/// 计算

///</summary>///<returns></returns>publicabstractdouble calculate();

}

///<summary>/// 加

///</summary>publicclass addCalculator : Calculator

{

publicaddCalculator(doublea,doubleb):base(a, b) {

}

///<summary>/// 重写父类的calculate方法

///</summary>///<returns></returns>publicoverridedouble calculate()

{

returnNumber1 + Number2;

}

}

///<summary>/// 减

///</summary>publicclass minusCalculator : Calculator

{

publicminusCalculator(doublea,doubleb) :base(a, b)

{

}

publicoverridedouble calculate()

{

returnNumber1 - Number2;

}

}

///<summary>/// 乘

///</summary>publicclass multiplyCalculator : Calculator

{

publicmultiplyCalculator(doublea,doubleb) :base(a, b)

{

}

publicoverridedouble calculate()

{

returnNumber1 * Number2;

}

}

///<summary>/// 除

///</summary>publicclass DivideCalculator : Calculator

{

publicDivideCalculator(doublea,doubleb) :base(a, b)

{

}

publicoverridedouble calculate()

{

returnNumber1 / Number2;

}

}

}