static void Main(string[] args)
{
Console.WriteLine("请输入第一个数：");
double dNum1 = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("请输入第二个数：");
double dNum2 = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("请输入操作符：");
string strOp = Console.ReadLine();
Factory factory = null;
switch (strOp)
{
case "+":
factory = new AddFactory();
break;
case "-":
factory = new SubFactory();
break;
case "*":
factory = new MulFactory();
break;
case "/":
factory = new DivFactory();
break;
case "%":
factory = new ModuloFactory();
break;
default:
Console.WriteLine("没有此工厂方法");
factory = null;
break;
}
if (factory != null)
{
Operation op = factory.CreateOperation();
Console.WriteLine("{0}{1}{2}={3}", dNum1, strOp, dNum2, op.GetResult(dNum1, dNum2));
}
}
static void Main(string[] args)
{
Console.WriteLine("---简单计算器---");
Console.Write("请输入左值：");
string numLeftStr = Console.ReadLine();
Console.WriteLine();
Console.Write("请输入运算符：");
string oper = Console.ReadLine();
Console.WriteLine();
Console.Write("请输入右值：");
string numRightStr = Console.ReadLine();
double numLeft = 0, numRight = 0;
double.TryParse(numLeftStr, out numLeft);
double.TryParse(numRightStr, out numRight);
IFactory operFactory;
switch (oper)
{
case "+":
operFactory = new AddFactory();
break;
case "-":
operFactory = new SubFactory();
break;
case "*":
operFactory = new MulFactory();
break;
case "/":
operFactory = new DivFactory();
break;
default:
operFactory = new AddFactory();
break;
}
Operate op = operFactory.CreateOperate();
op.NumLeft = numLeft;
op.NumRight = numRight;
Console.WriteLine("结果为{0}", op.GetResult());
}