تحديات برمجيةالتحدي الثاني - حل التمرين الخامس بلغة C#

using System; class Program { static void Main(string[] args) { double a, b; int option = -1; Console.Write("Enter first number: "); a = Double.Parse(Console.ReadLine()); Console.Write("Enter second number: "); b = Double.Parse(Console.ReadLine()); Console.WriteLine( "\nWrite down the operation number then press enter\n" + "0: To end the program.\n" + "1: To print the sum.\n" + "2: To print the subtraction.\n" + "3: To print the multiplication.\n" + "4: To print the division."); while (option != 0) { Console.WriteLine("-------------------------"); Console.Write("Enter option: "); option = Int32.Parse(Console.ReadLine()); switch (option) { case 0: Console.WriteLine("Program end."); break; case 1: Console.WriteLine(a + " + " + b + " = " + (a + b)); break; case 2: Console.WriteLine(a + " - " + b + " = " + (a - b)); break; case 3: Console.WriteLine(a + " * " + b + " = " + (a * b)); break; case 4: Console.WriteLine(a + " / " + b + " = " + (a / b)); break; } } Console.ReadKey(); } }