C#控制台简易计算机

创建计算类

    class Maths{private double num1;private double num2;private string xsf;public double Num1{get { return num1; }set { num1 = value; }}public double Num2{get { return num2; }set { num2 = value; }}/// <summary>/// 运算符/// </summary>public string Xsf{get { return xsf; }set{if (value == "+" || value == "-" || value == "*" || value == "/" || value == "%" || value == "^"){xsf = value;}else{Console.WriteLine("请输入运算符+、-、*、/、%、^");this.xsf = Console.ReadLine();}}}/// <summary>/// /// </summary>/// <param name="num1">加数、被减数、乘数、被除数、底数</param>/// <param name="xsf">运算符号加：+，减：-，乘：*，除：/，余：%，乘方：^</param>/// <param name="num2">加数、减数、乘数、除数、指数</param>public void Jg(double num1,string xsf,double num2){double jg = 0;switch (xsf){case "+":jg = num1 + num2;Console.WriteLine("加法结果和值为：{0}", jg);break;case "-":jg = num1 - num2;Console.WriteLine("减法结果差值为：{0}", jg);break;case "*":jg = num1 * num2;Console.WriteLine("乘法结果积值为：{0}", jg);break;case "/":if (num2 != 0){jg = num1 / num2;Console.WriteLine("除法结果商值为：{0}", jg);}else{Console.WriteLine("除数不能为0");num2 = Convert.ToInt32(Console.ReadLine());jg = num1 / num2;Console.WriteLine("除法结果商值为：{0}", jg);}break;case "%":if (num2 != 0){jg = num1 % num2;Console.WriteLine("余运算结果余数为：{0}", jg);}else{Console.WriteLine("%后的数字不能为0");num2 = Convert.ToInt32(Console.ReadLine());jg = num1 % num2;Console.WriteLine("余运算结果余数为：{0}", jg);}break;case "^":jg = Math.Pow(num1, num2);Console.WriteLine("乘方结果幂值为：{0}", jg);break;default:break;}}}

主函数实现传值、输入输出功能

        static void Main(string[] args){Maths maths = new Maths();Console.WriteLine("请输入第一个数");maths.Num1 = Convert.ToInt32(Console.ReadLine());Console.WriteLine("请输入运算符");maths.Xsf = Console.ReadLine();Console.WriteLine("请输入第二个数字");maths.Num2 = Convert.ToInt32(Console.ReadLine());maths.Jg(maths.Num1, maths.Xsf, maths.Num2);Console.ReadLine();}

运算成功

运算符输错改正，除数输入为0改正