这个是判断按键是否是Ctrl+C或Ctrl+D,实现复制或粘贴,但是每次调试时,e.KeyCode的值是LButton|ShiftKey。这个是怎么回事呢?private void dataGridView1_KeyUp(object sender, KeyEventArgs e)
        {            if (e.Modifiers.CompareTo(Keys.Control)==0 && e.KeyCode == Keys.C)
            {
                Clipboard.SetDataObject(dataGridView1.GetClipboardContent());
            }            if (e.Modifiers.CompareTo(Keys.Control) == 0 && e.KeyCode == Keys.V)
            {
                CopyDgv(dataGridView1);
            }
            
            if (e.KeyCode == Keys.Enter)
            {
                System.Windows.Forms.SendKeys.Send("{TAB}");
            }
        }