private void btnCalc_Click(object sender, EventArgs e)
{
CalcPlus DoPlus = (a, b) => a + b; // 익명 메소드를 람다식으로 구현
CalcMinus DoMinus = (a, b) =>
{
return(a - b);
};
CalcMul DoMul = (a, b) => a * b;
CalcPlus CalcDiv = (a, b) => a / b;
Console.WriteLine(comboBoxCalc.SelectedItem);
switch (comboBoxCalc.SelectedIndex)
{
case 0:
Console.WriteLine("Plus");
string result = DoPlus(Int32.Parse(txtFirstNum.Value.ToString()), Int32.Parse(txtSecondNum.Value.ToString())).ToString();
txtResult.Text = result;
Console.WriteLine("Result : " + result);
break;
case 1:
txtResult.Text = DoMinus(Int32.Parse(txtFirstNum.Value.ToString()), Int32.Parse(txtSecondNum.Value.ToString())).ToString();
break;
case 2:
txtResult.Text = DoMul(Int32.Parse(txtFirstNum.Value.ToString()), Int32.Parse(txtSecondNum.Value.ToString())).ToString();
break;
case 3:
txtResult.Text = CalcDiv(Int32.Parse(txtFirstNum.Value.ToString()), Int32.Parse(txtSecondNum.Value.ToString())).ToString();
break;
}
}
public void TestMinus2()
{
string[] numsAsStrings = { "-", "200", "311" };
//TextBox tBox = new TextBox();
CalcMinus calcM = new CalcMinus();
int num = calcM.Calculate(numsAsStrings, null);
Assert.AreEqual(num, 111);
}
