/*
* 请用C++、Java、C#或VB.NET任意一种面向对象语言实现一个计算器控制台程序
* 要求：输入两个数和运算符号，得到结果
*/
private static void Main(string[] args)
{
try
{
Console.Write("请输入数字A：");
string strNumberA = Console.ReadLine();
Console.Write("请输入运算符号（+、-、*、/）：");
string strOperate = Console.ReadLine();
Console.Write("请输入数字B：");
string strNumberB = Console.ReadLine();
string strResult = "";
Operation oper;
oper = OperationFactory.createOperate(strOperate);
oper.NumberA = Convert.ToDouble(strNumberA);
oper.NumberB = Convert.ToDouble(strNumberB);
double result = oper.GetResult();
strResult = Convert.ToString(result);
Console.WriteLine("结果是：" + strResult);
Console.ReadLine();
}
catch (Exception ex)
{
Console.WriteLine("您的输入有错：" + ex.Message);
}
}
static void Main(string[] args)
{
Operation oper = OperationFactory.createOperate("+");
oper.NumberA = 1;
oper.NumberB = 2;
Console.WriteLine(oper.GetResult());
Console.ReadKey();
}
private void btnAdd_Click(object sender, EventArgs e)
{
if (txtShow.Text != "")
{
oper = OperationFactory.createOperate(((Button)sender).Text);
oper.NumberA = Convert.ToDouble(txtShow.Text);
bOperate = true;
}
}
private void btnEqual_Click(object sender, EventArgs e)
{
if (txtShow.Text != "")
{
if (((Button)sender).Text != "=")
{
oper = OperationFactory.createOperate(((Button)sender).Text);
}
oper.NumberB = Convert.ToDouble(txtShow.Text);
txtShow.Text = oper.GetResult().ToString();
bOperate = true;
}
}