static void Main(string[] args)
{
try
{
Console.WriteLine("请输入第一个数");
double numA = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("请输入操作符");
string operate = Console.ReadLine();
Console.WriteLine("请输入第二个数");
double numB = Convert.ToDouble(Console.ReadLine());
Operation oper = OperationFactory.CreateOperate(operate);
oper.NumberA = numA;
oper.NumberB = numB;
Console.WriteLine(oper.GetResult());
Console.ReadKey();
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
Console.ReadKey();
}
}
