static void Main(string[] args)
{
Console.WriteLine("请输入第一个数：");
double num_a = double.Parse(Console.ReadLine());
Console.WriteLine("请输入计算的方式：(+ - * /)");
string operate = Console.ReadLine();
Operation oper = OperationFactory.createOperate(operate);
Console.WriteLine("请输入第二个数：");
double num_b = double.Parse(Console.ReadLine());
oper.NumA = num_a;
oper.NumB = num_b;
Console.WriteLine("计算结果为：{0}", oper.GetResult());
Console.ReadLine();
}
static void Main(string[] args)
{
try
{
Console.WriteLine("请输入第一个数：");
double numberA = double.Parse(Console.ReadLine());
Console.WriteLine("请输入第二个数：");
double numberB = double.Parse(Console.ReadLine());
Console.WriteLine("请输入操作符号：");
string operate = Console.ReadLine();
Operation oper = OperationFactory.CreateOperate(operate);
oper.NumberA = numberA;
oper.NumberB = numberB;
double result = oper.GetResult();
Console.WriteLine(numberA + operate + numberB + "=" + result);
Console.ReadLine();
}
catch (Exception ex)
{
throw ex;
}
}
