如何在运行时在winform上移动标签

private bool isLabelMoving = false;
private Point mouseOffset;

private void label1_MouseDown(object sender, MouseEventArgs e)
{
    if (e.Button == MouseButtons.Left)
    {
        isLabelMoving = true;
        mouseOffset = new Point(e.X, e.Y);
    }
}

private void label1_MouseMove(object sender, MouseEventArgs e)
{
    if (isLabelMoving)
    {
        Point mousePos = this.PointToClient(Cursor.Position);
        label1.Location = new Point(mousePos.X - mouseOffset.X, mousePos.Y - mouseOffset.Y);
    }
}

private void label1_MouseUp(object sender, MouseEventArgs e)
{
    isLabelMoving = false;
}