【基础知识】创建匹配游戏

namespace WindowsFormsApplication3
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            MatchGraphic();
        }
        Random random = new Random();
        Label firstLabel = null;
        Label lastLabel = null;
        List<string> icons = new List<string>() 
        {
        "!", "!", "N", "N", ",", ",", "k", "k",
        "b", "b", "v", "v", "w", "w", "z", "z"
        };
        private void MatchGraphic()
        {
            foreach (Control control in tableLayoutPanel1.Controls)
            {
                Label iconLable=control as Label;
                if (iconLable!=null)
                {
                    int randomNumber = random.Next(icons.Count);
                    iconLable.Text = icons[randomNumber];
                    iconLable.ForeColor = iconLable.BackColor;
                    icons.RemoveAt(randomNumber);
                }
            }
        }

        private void label_Click(object sender, EventArgs e)
        {
            if (timer1.Enabled == true)
                return;
            Label sendLabel = sender as Label;
            if (sendLabel != null)
            {
                if(sendLabel.ForeColor == Color.Black) 
                return;
                if (firstLabel == null)
                {
                    firstLabel = sendLabel;
                    sendLabel.ForeColor = Color.Black;
                    return;
                }
                lastLabel = sendLabel;
                lastLabel.ForeColor = Color.Black;
                CheckForWinner();
                if (firstLabel.Text == lastLabel.Text)
                {
                    firstLabel = null;
                    lastLabel = null;
                    return;
                }
                timer1.Start();
            }
        }
        private void CheckForWinner()
        {
            // Go through all of the labels in the TableLayoutPanel, 
            // checking each one to see if its icon is matched
            foreach (Control control in tableLayoutPanel1.Controls)
            {
                Label iconLabel = control as Label;

                if (iconLabel != null)
                {
                    if (iconLabel.ForeColor == iconLabel.BackColor)
                        return;
                }
            }
             
            MessageBox.Show("游戏胜利！", "恭喜！");
            Close();
        }
        private void timer1_Tick(object sender, EventArgs e)
        {
            timer1.Stop();
            firstLabel.ForeColor = firstLabel.BackColor;
            lastLabel.ForeColor = lastLabel.BackColor;
            firstLabel = null;
            lastLabel = null;
        }
    }
}

附上链接