C# (CSharp) InputParser.GetSumParts示例

示例#1

        public static void Main(string[] args)
        {
            while (true)
            {
                Console.WriteLine("Please enter a sum with 2 parts, for example: 3 * 6");

                var userInput = Console.ReadLine();

                var(isValid, message) = InputParser.Validate(userInput);

                if (!isValid)
                {
                    Console.WriteLine($"Invalid sum. {message}");
                    Console.WriteLine();
                    continue;
                }

                var(number1, number2, sumType) = InputParser.GetSumParts(userInput);

                var calculator = new Calculator();

                decimal sumResult;

                switch (sumType)
                {
                case '+':
                    sumResult = calculator.Add(number1, number2);
                    break;

                case '-':
                    sumResult = calculator.Deduct(number1, number2);
                    break;

                case '*':
                    sumResult = calculator.Multiply(number1, number2);
                    break;

                default:
                    Console.WriteLine("Sum type not implemented.");
                    Console.WriteLine();
                    continue;
                }

                Console.WriteLine(sumResult);
                Console.WriteLine();
            }
        }