c#为我们提供thread可以这么用：

Thread t = new Thread(new ThreadStart(ScreenMonitor));

t.Start();

public void ScreenMonitor()

{         

　//操作

 }

如果想在方法中传入参数怎么办？并且还不止一个参数！

struct ImageParam        {            public int a;            public int b;            public int c;            public int d;        }        public void ScreenMonitor(Object args)        {            para = (ImageParam)args;            int aa = para.a;            int bb = para.b;            int cc = para.c;            int dd = para.d;            Bitmap myImage = new Bitmap(aa, bb);            Graphics g = Graphics.FromImage(myImage);            g.CopyFromScreen(new Point(cc, dd), new Point(0, 0), new Size(aa, bb));            String picpath = @"d:\test.jpg";            myImage.Save(picpath);            g.Dispose();            myImage.Dispose();        }        private void button1_Click(object sender, EventArgs e)        {            Thread t = new Thread(ScreenMonitor);            ImageParam imgPara = new ImageParam();            imgPara.a = aa;            imgPara.b = bb;            imgPara.c = cc;            imgPara.d = dd;            t.Start((ImageParam)imgPara);              }