private void 运动速度ToolStripMenuItem_Click(object sender, EventArgs e) { if (m_enumState == State.Run) { m_oTimer.Stop(); } IntervalTimingSetter itSetter = new IntervalTimingSetter(m_oTimer.Interval); if (itSetter.ShowDialog() == DialogResult.OK) { m_oTimer.Interval = itSetter.getInterval(); } if (m_enumState == State.Run) { m_oTimer.Start(); } }