什么好玩做什么
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
Double first = 0;
String second = null;
int code = 0;
String result = null;
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void button(String sender)
{
if (result != null) { textBox1.Clear(); }
if (code != 0 && second == null) { textBox1.Clear(); }
String b = sender;
if (textBox1.Text == null || textBox1.Text == "")
{
textBox1.Text = b;
}
else
{
textBox1.Text = textBox1.Text + b;
}
if (code != 0) { second = textBox1.Text; }
result = null;
label1.Focus();
}
private void button1_Click(object sender, EventArgs e)
{
button("1");
}
private void button2_Click(object sender, EventArgs e)
{
button("2");
}
private void button3_Click(object sender, EventArgs e)
{
button("3");
}
private void button4_Click(object sender, EventArgs e)
{
button("4");
}
private void button5_Click(object sender, EventArgs e)
{
button("5");
}
private void button6_Click(object sender, EventArgs e)
{
button("6");
}
private void button7_Click(object sender, EventArgs e)
{
button("7");
}
private void button8_Click(object sender, EventArgs e)
{
button("8");
}
private void button9_Click(object sender, EventArgs e)
{
button("9");
}
private void button10_Click(object sender, EventArgs e)
{
if (textBox1.Text == null || textBox1.Text == "")
{
button("0");
}else if (Convert.ToDouble(textBox1.Text) != 0)
{
button("0");
}else if (textBox1.Text.IndexOf(".") == 1)
{
button("0");
}
label1.Focus();
}
private void button11_Click(object sender, EventArgs e)
{
if (second == null) { MessageBox.Show("哥们你要算什么啊？麻烦再输入数！"); }
else if (Convert.ToDouble(second) == 0 && first != 0 && code == 4)
{
textBox1.Text = "除数不能为零！";
}
else
{
switch (code)
{
case 1:
textBox1.Text = Convert.ToString(first + Convert.ToDouble(textBox1.Text));
break;
case 2:
textBox1.Text = Convert.ToString(first - Convert.ToDouble(textBox1.Text));
break;
case 3:
textBox1.Text = Convert.ToString(first * Convert.ToDouble(textBox1.Text));
break;
case 4:
textBox1.Text = Convert.ToString(first / Convert.ToDouble(textBox1.Text));
break;
}
}
first = 0;
second = null;
code = 0;
result = textBox1.Text;
label1.Focus();
}
private void button12_Click(object sender, EventArgs e)
{
if (Convert.ToDouble(textBox1.Text) != 0 || textBox1.Text == null || textBox1.Text == "")
{
button("00");
}
else if (textBox1.Text.IndexOf(".") == 1)
{
button("00");
} label1.Focus();
}
private void button17_Click(object sender, EventArgs e)
{
if (textBox1.Text.IndexOf(".") < 1)
{
button(".");
} label1.Focus();
}
private void button_2()
{
if (textBox1.Text == null || textBox1.Text == "")
{
first = 0;
}
else if (first == 0)
{
first = Convert.ToDouble(textBox1.Text);
}
}
private void button18_Click(object sender, EventArgs e)
{
button_2();
code = 4; label1.Focus();
}
private void button13_Click(object sender, EventArgs e)
{
button_2();
code = 2; label1.Focus();
}
private void button14_Click(object sender, EventArgs e)
{
button_2();
code = 3; label1.Focus();
}
private void button15_Click(object sender, EventArgs e)
{
button_2();
code = 1; label1.Focus();
}
private void button16_Click(object sender, EventArgs e)
{
textBox1.Clear(); label1.Focus();
}
private void Form1_KeyUp(object sender, KeyEventArgs e)
{
//MessageBox.Show(Convert.ToString(e.KeyCode));
if (e.KeyCode == Keys.Enter || e.KeyCode == Keys.Oemplus)
{
button11_Click(null, null);
}
else if (e.KeyCode == Keys.Divide || e.KeyCode == Keys.OemQuestion)
{
button18_Click(null, null);
}
else if (e.KeyCode == Keys.Add || e.KeyCode == Keys.Oemplus)
{
button15_Click(null, null);
}
else if (e.KeyCode == Keys.Multiply)
{
button14_Click(null, null);
}
else if (e.KeyCode == Keys.Subtract || e.KeyCode == Keys.OemMinus)
{
button13_Click(null, null);
}
else if (e.KeyCode == Keys.OemPeriod || e.KeyCode == Keys.Delete)
{
button17_Click(null, null);
}
else if (e.KeyCode == Keys.Oemtilde)
{
button12_Click(null, null);
}
else if (e.KeyCode == Keys.D1 || e.KeyCode == Keys.NumPad1)
{
button1_Click(null, null);
}
else if (e.KeyCode == Keys.D2 || e.KeyCode == Keys.NumPad2)
{
button2_Click(null, null);
}
else if (e.KeyCode == Keys.D3 || e.KeyCode == Keys.NumPad3)
{
button3_Click(null, null);
}
else if (e.KeyCode == Keys.D4 || e.KeyCode == Keys.NumPad4)
{
button4_Click(null, null);
}
else if (e.KeyCode == Keys.D5 || e.KeyCode == Keys.NumPad5)
{
button5_Click(null, null);
}
else if (e.KeyCode == Keys.D6 || e.KeyCode == Keys.NumPad6)
{
button6_Click(null, null);
}
else if (e.KeyCode == Keys.D7 || e.KeyCode == Keys.NumPad7)
{
button7_Click(null, null);
}
else if (e.KeyCode == Keys.D8 || e.KeyCode == Keys.NumPad8)
{
button8_Click(null, null);
}
else if (e.KeyCode == Keys.D9 || e.KeyCode == Keys.NumPad9)
{
button9_Click(null, null);
}
else if (e.KeyCode == Keys.D0 || e.KeyCode == Keys.NumPad0)
{
button10_Click(null, null);
}
}
private void textBox1_Enter(object sender, EventArgs e)
{
label1.Focus();
}
}
}
