/// <summary>
/// 双划线删除事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void mniDoubleStrikeOutDelete_Click(object sender, System.EventArgs e)
{
if (m_txtFocusedRichTextBox != null)
{
m_txtFocusedRichTextBox.m_mthSelectionDoubleStrikeThough(true);
}
}
