图片的切换与位置的移动

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 WindowsFormsApplication1

{

   

    public partial class Form1 : Form

    {

    

        public Form1()

        {

            InitializeComponent();

        }

        private void Form1_KeyDown(object sender, KeyEventArgs e)

        {

            switch (e.KeyCode)

            {

                case Keys.Left:

                    Y -= Math.Sin(Q) * 10;

                    X -= Math.Cos(Q) * 10;

                    this.pictureBox1.Location = new Point((int)X ,(int)Y); break;

                //case Keys.Right:

                //    this.pictureBox1.Location.X += 45; break;

                //case Keys.Up:

                //    this.pictureBox1.Location.Y -= 45; break;

                //case Keys.Down:

                //    this.pictureBox1.Location.Y += 45; break;

                //default:

                //    break;

            }

        }

        private void Form1_Load(object sender, EventArgs e)

        {

            this.pictureBox1.Location = new Point(0, 0);

        }

        static double X = 1;

        static double Y = 1;

        static int Q = 45;

        static bool flag = true;

        private void button1_Click(object sender, EventArgs e)

        {

            Y += Math.Sin(Q)*10;

            X += Math.Cos(Q)*10;

            this.pictureBox1.Location = new Point((int)X, (int)Y);

            if (flag==true)

            {

                pictureBox1.Image = imageList1.Images[0];

                flag = false;

            }

            else

            {

                flag = true;

                pictureBox1.Image = imageList1.Images[1];

            }

        }

    }

}