一个猜数字的小游戏

要点在于按钮的布局和对控件的使用及删除

namespace NumberGame
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            T_time.Interval = 1;
        }

        Random G_random = new Random();
        int G_int_num = 0;
        DateTime G_time_time;

        /// <summary>
        /// 点击开始后，生成布局
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button1_Click(object sender, EventArgs e)
        {
            RemoveControl();
            T_time.Start();
            G_time_time = DateTime.Now;
            G_int_num = G_random.Next(1, 101);
            int l_int_x = 11;
            int l_int_y = 44;
            for (int i = 0; i < 100; i++)
            {
                Button bt = new Button();
                bt.Text = (i + 1).ToString();
                bt.Name = (i + 1).ToString();
                bt.Width = 39;
                bt.Height = 39;
                bt.Location = new Point(l_int_x, l_int_y);
                bt.Click += new EventHandler(bt_click);
                l_int_x += 42;

                if ((i + 1) % 10 == 0)
                {
                    l_int_x = 11;
                    l_int_y += 44;
                }
                Controls.Add(bt);
            }
            button1.Enabled = false;
        }

        /// <summary>
        /// 按下按钮后，与随机数进行比较
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        void bt_click(object sender, EventArgs e)
        {
            Control l_control = sender as Control;
            int num = Int32.Parse(l_control.Text);
            if (num > G_int_num)
            {
                l_control.Text = "大";
                l_control.BackColor = Color.Red;
                l_control.Enabled = false;
            }
            if (num < G_int_num)
            {
                l_control.Text = "小";
                l_control.BackColor = Color.Yellow;
                l_control.Enabled = false;
            }
            if (num == G_int_num)
            {
                T_time.Stop();
                button1.Enabled = true;
                l_control.BackColor = Color.Green;
                MessageBox.Show(string.Format("共猜了{0}次", GetCount()));
            }
        }

        /// <summary>
        /// 取得已按按钮的数量
        /// </summary>
        /// <returns></returns>
        string GetCount()
        {
            int l_int_count = 0;
            foreach (Control c in Controls)
            {
                if (!c.Enabled) l_int_count++;
            }
            return l_int_count.ToString();
        }

        /// <summary>
        /// 清除按钮
        /// </summary>
        void RemoveControl()
        {

            for (int i = 0; i < 100; i++)
            {
                if (Controls.ContainsKey((i + 1).ToString()))
                {
                    for (int j = 0; j < Controls.Count; j++)
                    {
                        if (Controls[j].Name == (i + 1).ToString())
                        {
                            Controls.RemoveAt(j);
                            break;
                        }
                    }
                }
            }
        }

        /// <summary>
        /// 开始布局时计算按钮的长宽及间隔
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Form1_MouseMove(object sender, MouseEventArgs e)
        {
            Point p = new Point();
            p.X = e.X;
            p.Y = e.Y;
            textBox1.Text = p.X.ToString() + "," + p.Y.ToString();
        }

        /// <summary>
        /// 计算用时
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void T_time_Tick(object sender, EventArgs e)
        {
            DateTime l_time = DateTime.Now;
            TimeSpan l_span = l_time - G_time_time;
            label1.Text = string.Format("用时：{0}秒", l_span.Seconds.ToString());
        }
    }
}