本文實(shí)例講述了C#基于簡(jiǎn)單工廠模式實(shí)現(xiàn)的計(jì)算器功能。分享給大家供大家參考，具體如下：
子類擁有父類除私有之外的所有屬性字段和方法
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using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace 工廠方法實(shí)現(xiàn)計(jì)算器{ /// <summary> /// 計(jì)算器類（抽象類，由子類重寫） /// </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> /// 計(jì)算 /// </summary> /// <returns></returns> public abstract double jsuan(); } /// <summary> /// 加法類 /// </summary> public class jiafaDll:Calculator //子類擁有父類除私有之外的所有屬性字段和方法 { public jiafaDll() { } public jiafaDll(double a, double b) : base(a, b) //調(diào)用父類帶兩個(gè)參數(shù)的構(gòu)造函數(shù)，來(lái)初始化Number1 和Number2 （注意：因?yàn)閖ianfaDll類繼承了Calculator，所以jianfaDll類是有Number1，和Number2兩個(gè)屬性的） { } /// <summary> /// 重寫父類的jsuan方法 /// </summary> /// <returns></returns> public override double jsuan() { return Number1 + Number2; } } /// <summary> /// 減法類 /// </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("請(qǐng)輸入第一個(gè)數(shù)"); double number1 = Convert.ToDouble(Console.ReadLine()); Console.WriteLine("請(qǐng)輸入一個(gè)操作符"); string caozuofu = Console.ReadLine(); Console.WriteLine("請(qǐng)輸入第二個(gè)數(shù)"); 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(); } }} |
希望本文所述對(duì)大家C#程序設(shè)計(jì)有所幫助。
原文鏈接：http://blog.csdn.net/fanbin168/article/details/45788277
