C# 计算器Demo源码下载

using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace 计算器{ class Calc { private double number1 = 0; //第1个数 private double number2 = 0; //第2个数 private double number3 = 0; //结果 public enum Sign { And, Substract, Multiply, Divide, Sign } //加减乘除符号枚举 public string Process { get; set; } //计算记录 public Calc() { } public double Number1 { get { return number1; } set { number1 = value; } } public double Number2 { get { return number2; } set { number2 = value; } } public double Number3 { get { return number3; } set { number3 = value; } } public void Calc_method(Sign sign) { switch (sign) { case Sign.And: //加法 number3 = number1 number2; break; case Sign.Divide: //除法 number3 = number1 / number2; break; case Sign.Multiply: //乘法 number3 = number1 * number2; break; case Sign.Substract: //减法 number3 = number1 - number2; break; } } }}