checkedListBox 获取选中的项 并且移动

        private void buttonSendChoickedToNosend_Click(object sender, EventArgs e)
        {
            for (int i = 0; i < this.checkedListBoxSend.CheckedItems.Count; i++)
            {
                    this.checkedListBoxSiftEmail.Items.Add(checkedListBoxSend.GetItemText(checkedListBoxSend.Items[i]));
                    this.checkedListBoxSend.Items.RemoveAt(i);
            }
        }