[C# ช่วยที่ค่ะ ] แปลโค๊ต ให้หน่อยค่ะพอดีเพิ่งเริ่มเรียนใหม่ๆ

int choice;
            float x, y, result;
            do//ทำ
            {
                Console.WriteLine("Please choose the choice that you want");
                Console.WriteLine("1.add");
                Console.WriteLine("2.erase");
                Console.WriteLine("3.multiply");
                Console.WriteLine("4.divide");
                Console.WriteLine("5.exit");
                choice = int.Parse(Console.ReadLine());
                switch (choice)
                {
                    case 1:
                        Console.Write("Please input a value x:");
                        x = float.Parse(Console.ReadLine());
                        Console.Write("Please input a value y:");
                        y = float.Parse(Console.ReadLine());
                        result = x + y;
                        Console.WriteLine("The result is {0}", result);
                        break;
                    case 2:
                        Console.Write("Please input a value x:");
                        x = float.Parse(Console.ReadLine());
                        Console.Write("Please input a value y:");
                        y = float.Parse(Console.ReadLine());
                        result = x - y;
                        Console.WriteLine("The result is {0}", result);
                        break;
                    case 3:
                        Console.Write("Please input a value x:");
                        x = float.Parse(Console.ReadLine());
                        Console.Write("Please input a value y:");
                        y = float.Parse(Console.ReadLine());
                        result = x * y;
                        Console.WriteLine("The result is {0}", result);
                        break;
                    case 4:
                        Console.Write("Please input a value x:");
                        x = float.Parse(Console.ReadLine());
                        Console.Write("Please input a value y:");
                        y = float.Parse(Console.ReadLine());
                        result = x / y;
                        Console.WriteLine("The result is {0}", result);
                        break;
                    case 5:
                        Console.WriteLine("exit");
                        Console.WriteLine("thank you");
                        break;
                }
            } while (choice != 5);
            Console.ReadLine();