为什么用线程去移动图片会闪呀闪的啊?
我用线程对图片的位置进行操作,产生移动效果,为什么会闪呀闪的啊?using System;
using System.Windows.Forms;
using System.Drawing;
using System.Threading;namespace 多线程带参数
{
    class Form1 : Form
    {
        private PictureBox pic;
        Graphics g;
        private int Bit_X,Loca;
        Bitmap bit;        public Form1()
        {
            Initialize();
        
        }        private void Initialize()
        {
            pic = new PictureBox();
            pic.Size = new Size(32, 48);
            pic.Location = new Point(0,0);
            
            g = pic.CreateGraphics();            this.SuspendLayout();
            this.Controls.Add(pic);
            
            this.Size = new Size(500, 280);
            this.StartPosition = FormStartPosition.CenterScreen;
            this.ResumeLayout();
                        bit = new Bitmap("MAN.png");
            Loca=Bit_X = 0;
            pic.Paint += new PaintEventHandler(pic_Paint);
        
           // CheckForIllegalCrossThreadCalls = false;
        }        void pic_Paint(object sender, PaintEventArgs e)
        {
            Thread thread1 = new Thread(new ThreadStart(ManMove));
            thread1.IsBackground = true;
            thread1.Start();
        }        private void ManMove()
        {
            while (pic.Location.X<460)
            {
                
                //bit.RotateFlip(RotateFlipType.Rotate90FlipY);
                Rectangle rect = new Rectangle(Bit_X, 96, 32, 48);
                Rectangle rectLoca = new Rectangle(0, 0, 32, 48);
                g.Clear(pic.BackColor);
                g.DrawImage(bit, rectLoca,rect,GraphicsUnit.Pixel);
                Thread.Sleep(200);
                Bit_X += 32;
                if (Bit_X >= 128)
                    Bit_X = 0;
                                MethodInvoker m = new MethodInvoker(Move_Loca);
                this.BeginInvoke(m);  //异步执行委托            }
            MessageBox.Show("d");
        }        private void Move_Loca()
        {
            pic.Location = new Point(Loca+=3, 0); 
        }
    }
}