void gm1_onClick_ImportMusic(object sender, EventArgs e)
{
axWindowsMediaPlayer1.Ctlcontrols.pause();
ImportMusic.ShowDialog();
ImportMusic.listBox1.Items.Clear();
DialogResult rs = ImportMusic.DialogResult;
if (rs== DialogResult.OK)
{
axWindowsMediaPlayer1.Ctlcontrols.play();
}
}