怎么实现重新开始

Question

先判断游戏是不是在运行中，如果是，就结束游戏（关闭游戏进程）
再重新运行
private void GameRun_Click(object sender, System.EventArgs e)
{
 System.Diagnostics.Process.Start(@"d:\\game.exe");
}
是不是这样情况

Answer 1

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;
using System.Drawing.Drawing2D;namespace caomin20140718dazi
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        Random r = new Random();
        int wrong = 0;
        int right = 0;
        float rightRate = 0;        private void Form1_Load(object sender, EventArgs e)
        {
            WindowState = FormWindowState.Maximized;
            panel1.Width = this.Width-button1.Width-50;
            panel1.Height = this.Height * 4 / 5;
            button1.Left = this.Width - button1.Width-30;
            button2.Left = button1.Left;
            button3.Left = button2.Left;        }        private void timer1_Tick(object sender, EventArgs e)
        {
            foreach (Control a in this.panel1.Controls)
            {
                if (a.GetType().Name == "Label")
                {
                    if (a.Tag.ToString().Contains("aa"))
                    {
                        a.Top++;
                        if (a.Top > this.panel1.Height)
                        {
                            a.Dispose();
                            wrong++;
                            this.label4.Text = this.wrong.ToString();
                        }
                    }
                    else if (a.Tag.ToString() == "zidan")
                    {
                        a.Top -= 7;
                        foreach (Control d in this.panel1.Controls)
                        {
                            if (d.GetType().Name == "Label" && d.Text == a.Text && d.Tag.ToString() == "aab")
                            {
                                if (a.Top <= d.Bottom)
                                {
                                    a.Dispose();
                                    d.Dispose();
                                    right++;
                                    this.label2.Text = this.right.ToString();                                }
                            }
                        }
                    }
                    if ((this.right + this.wrong) == 0)
                    {
                    }
                    else
                    {
                        this.rightRate = this.right * 100 / (this.right + this.wrong);
                        this.label6.Text = this.rightRate.ToString() + "%";                    }
                        
                }
            }
        }        private void timer2_Tick(object sender, EventArgs e)
        {
            Label a = new Label();
            a.AutoSize = true;
            a.Text = ((char)r.Next(97, 123)).ToString();
            a.Font = new Font("华文彩云", r.Next(15, 40));
            a.ForeColor = Color.FromArgb(r.Next(0, 256), r.Next(0, 256), r.Next(0, 256));
            a.Location = new Point(r.Next(pictureBox1.Width / 2, this.panel1.Width - a.Width), 0);
            a.Tag = "aa";
            this.panel1.Controls.Add(a);
        }        private void Form1_KeyPress(object sender, KeyPressEventArgs e)
        {
            foreach (Control a in this.panel1.Controls)
            {
                if (a.GetType().Name == "Label" && a.Tag.ToString() == "aa")
                {
                    if (e.KeyChar.ToString() == a.Text)
                    {
                        a.Tag += "b";
                        Label b = new Label();
                        b.Text = a.Text;
                        b.Font = a.Font;
                        b.ForeColor = a.ForeColor;
                        b.BackColor = a.ForeColor;
                        b.Location = new Point(a.Left, this.panel1.Height - b.Height);
                        b.Size = new Size(20, 25);
                        b.Tag = "zidan";
                        this.panel1.Controls.Add(b);
                        GraphicsPath g = new GraphicsPath();
                        g.AddEllipse(0, 0, b.Width, b.Height);
                        b.Region = new System.Drawing.Region(g);
                        pictureBox1.Location = new Point(a.Left - pictureBox1.Width / 2 + a.Width / 2 - 10, panel1.Height - pictureBox1.Height);
                        break;
                    }
                }
            }
        }        private void button1_Click(object sender, EventArgs e)
        {
        }        private void button2_Click(object sender, EventArgs e)
        {
           
            
        }        private void button3_Click(object sender, EventArgs e)
        {
            this.Close();
        }        private void button1_MouseClick(object sender, MouseEventArgs e)
        {
            if (button1.Text == "开始游戏")
            {
                timer1.Start();
                timer2.Start();
                button1.Text = "暂停游戏";
            }
            else if (button1.Text == "暂停游戏")
            {
                timer1.Stop();
                timer2.Stop();
                button1.Text = "开始游戏";
            }
        }
    }
}
求大神在button写下重新开始游戏，就是游戏在运行，把panel里面的label控件清除，还有label2，label4，label6里的数字清空，谢了

Answer 2

//停止计时器
timer1.Stop();
timer2.Stop();//清空标签值
label2.Text = "";
label4 = "";
label6 = "";//清空panel1中的所有控件
//panel1.Controls.Clear();//清空panel1中的所有Label
foreach (Control item in panel1.Controls.OfType<Label>())
{
panel1.Controls.Remove(item);
}