洪緯廷的部落格

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 WindowsFormsApplication2
{
   public partial class Form1 : Form
   {
       int i = 0;
       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)
       {
           if (i % 2 == 0)
           {
               button1.Text = "O";
           }
           if (i % 2 == 1)
           {
               button1.Text = "X";
           }
           i = i + 1;
           button1.Enabled = false;

       }

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

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

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

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

       private void button6_Click(object sender, EventArgs e)
       {
           if (i % 2 == 0)
           {
               button6.Text = "O";
           }
           if (i % 2 == 1)
           {
               button6.Text = "X";
           }
           i = i + 1;
           button6.Enabled = false;
       }

       private void button7_Click(object sender, EventArgs e)
       {
           if (i % 2 == 0)
           {
               button7.Text = "O";
           }
           if (i % 2 == 1)
           {
               button7.Text = "X";
           }
           i = i + 1;
           button7.Enabled = false;
       }

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

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

       }

      
   }
}