科韋的部落格

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication3
{
public partial class Form1 : Form
{
int c = 0, r;
public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{
button1.Text = "";
button2.Text = "";
button3.Text = "";
button4.Text = "";
button5.Text = "";
button6.Text = "";
button7.Text = "";
button8.Text = "";
button9.Text = "";
}

private void button1_Click(object sender, EventArgs e)
{

c = c+1;
r = c % 2;
textBox1.Text = Convert.ToString(r);
if (r == 0)
{
button1.Text = "O";
}
else
{
button1.Text = "X";
}
button1.Enabled = false;
}

private void button2_Click(object sender, EventArgs e)
{
c = c + 1;
r = c % 2;
textBox1.Text = Convert.ToString(r);
if (r == 0)
{
button2.Text = "O";
}
else
{
button2.Text = "X";
}
button2.Enabled = false;
}

private void button3_Click(object sender, EventArgs e)
{
c = c + 1;
r = c % 2;
textBox1.Text = Convert.ToString(r);
if (r == 0)
{
button3.Text = "O";
}
else
{
button3.Text = "X";
}
button3.Enabled = false;
}

private void button4_Click(object sender, EventArgs e)
{
c = c + 1;
r = c % 2;
textBox1.Text = Convert.ToString(r);
if (r == 0)
{
button4.Text = "O";
}
else
{
button4.Text = "X";
}
button4.Enabled = false;
}

private void button5_Click(object sender, EventArgs e)
{
c = c + 1;
r = c % 2;
textBox1.Text = Convert.ToString(r);
if (r == 0)
{
button5.Text = "O";
}
else
{
button5.Text = "X";
}
button5.Enabled = false;
}

private void button6_Click(object sender, EventArgs e)
{
c = c + 1;
r = c % 2;
textBox1.Text = Convert.ToString(r);
if (r == 0)
{
button6.Text = "O";
}
else
{
button6.Text = "X";
}
button6.Enabled = false;
}
private void button7_Click(object sender, EventArgs e)
{
c = c + 1;
r = c % 2;
textBox1.Text = Convert.ToString(r);
if (r == 0)
{
button7.Text = "O";
}
else
{
button7.Text = "X";
}
button7.Enabled = false;
}

private void button8_Click(object sender, EventArgs e)
{
c = c + 1;
r = c % 2;
textBox1.Text = Convert.ToString(r);
if (r == 0)
{
button8.Text = "O";
}
else
{
button8.Text = "X";
}
button8.Enabled = false;
}

private void button9_Click(object sender, EventArgs e)
{
c = c + 1;
r = c % 2;
textBox1.Text = Convert.ToString(r);
if (r == 0)
{
button9.Text = "O";
}
else
{
button9.Text = "X";
}
button9.Enabled = false;
}
}

}