本文实例讲述了C#基于简单工厂模式实现的计算器功能。分享给大家供大家参考，具体如下：
子类拥有父类除私有之外的所有属性字段和方法
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using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace 工厂方法实现计算器{ /// <summary> /// 计算器类（抽象类，由子类重写） /// </summary> public abstract class Calculator { public double Number1 { get; set; } public double Number2 { get; set; } public Calculator() { } public Calculator(double a, double b) { this.Number1=a; this.Number2=b; } /// <summary> /// 计算 /// </summary> /// <returns></returns> public abstract double jsuan(); } /// <summary> /// 加法类 /// </summary> public class jiafaDll:Calculator //子类拥有父类除私有之外的所有属性字段和方法 { public jiafaDll() { } public jiafaDll(double a, double b) : base(a, b) //调用父类带两个参数的构造函数，来初始化Number1 和Number2 （注意：因为jianfaDll类继承了Calculator，所以jianfaDll类是有Number1，和Number2两个属性的） { } /// <summary> /// 重写父类的jsuan方法 /// </summary> /// <returns></returns> public override double jsuan() { return Number1 + Number2; } } /// <summary> /// 减法类 /// </summary> public class jianfaDll : Calculator { public jianfaDll() { } public jianfaDll(double a, double b) : base(a, b) { } public override double jsuan() { return Number1 - Number2; } } class Program { static void Main(string[] args) { Console.WriteLine("请输入第一个数"); double number1 = Convert.ToDouble(Console.ReadLine()); Console.WriteLine("请输入一个操作符"); string caozuofu = Console.ReadLine(); Console.WriteLine("请输入第二个数"); double number2 = Convert.ToDouble(Console.ReadLine()); Calculator c=null; switch (caozuofu) { case "+": c = new jiafaDll(number1, number2); break; case "-": c = new jianfaDll(number1, number2); break; } double i= c.jsuan(); Console.WriteLine(i); Console.ReadKey(); } }} |
希望本文所述对大家C#程序设计有所帮助。
原文链接：http://blog.csdn.net/fanbin168/article/details/45788277
