C#中listbox中选中多项，并删除

1.SelectionMode 改成可以多选2.利用KeyDown事件：        private void listBox1_KeyDown(object sender, KeyEventArgs e)        {            if (e.KeyCode == Keys.Delete)            {                for (int i = listBox1.SelectedItems.Count - 1; i > -1; i--)                {                    listBox1.Items.Remove(listBox1.SelectedItems[i]);                }            }        }

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