如何获得鼠标在picturebox中移动时的坐标

Question

我的意思就是当鼠标在picturebox中mousemove时，比如说鼠标从picturebox窗口的左下角移动到右上角，我想获得从上部到下部这中间鼠标移动时所经过的每个点的坐标，然后将坐标保存到一个文本中去　比如c:\\test.txt 。
mousemove程序如下 private void pictureBox2_MouseDown(object sender, MouseEventArgs e)
        {
            isDraw = true;
            this.pictureBox2.Refresh();
        }        private void pictureBox2_MouseUp(object sender, MouseEventArgs e)
        {
            isDraw = false;
            //this.pictureBox2.Refresh();
        }        private void pictureBox2_MouseMove(object sender, MouseEventArgs e)
        {
            Graphics g2=this.pictureBox2.CreateGraphics();
            if (isDraw)
            {
                label15.Text = e.X.ToString();
                label16.Text = e.Y.ToString();
                g2.DrawEllipse(new Pen(Color.Red, 1), e.X,e.Y, 1, 1);            }
}请问如何实现

Answer 1

            FileStream fs = new FileStream("c:\\test.txt", FileMode.Append);
            StreamWriter sw = new StreamWriter(fs);
            sw.BaseStream.Seek(0, SeekOrigin.End);
            sw.WriteLine("e.X,e.Y");
            sw.WriteLine(DateTime.Now);
            sw.Close();
            fs.Close();本人菜鸟　用上面的程序文本里保存的都是e.X,e.Y 求指点

Answer 2

 FileStream fs = new FileStream("c:\\test.txt", FileMode.Append);
            StreamWriter sw = new StreamWriter(fs);
            sw.BaseStream.Seek(0, SeekOrigin.End);
            sw.WriteLine(e.x.tostring()+","+e.y.tostring());
            sw.WriteLine(DateTime.Now);
            sw.Close();
            fs.Close();

Answer 3

sw.WriteLine(e.X.ToString(),e.Y.ToString());
双引号。已经是常量了

Answer 4

漏掉了2个字符串拼接
e.x.tostring() + "," + e.y.tostring()
或者string.format("{0},{1}", e.x.tostring(), e.y.tostring())

Answer 5

“int”并不包含“tostring”的定义
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