//添加列表项，勾选指定条件的项

        private void btn_AddItem_Click(object sender, EventArgs e)

        {

            string value = txt_ItemText.Text;

            if (!string.IsNullOrWhiteSpace(value))

            {

                if (!this.checkedListBox1.Items.Contains(value))

                {

                    bool isRn = value.Contains("帅") ? true : false;

                    this.checkedListBox1.Items.Add(value, isRn);

                    checkedListBox1_SelectedIndexChanged(null, null);

                }

            }

        }

        //获取勾选项并展示

        private void checkedListBox1_SelectedIndexChanged(object sender, EventArgs e)

        {

            StringBuilder sb = new StringBuilder();

            for (int i = , counti = checkedListBox1.Items.Count; i < counti; i++)

            {

                if (checkedListBox1.GetItemChecked(i))

                {

                    sb.AppendFormat("{0},", checkedListBox1.GetItemText(checkedListBox1.Items[i]));

                }

            }

            this.txt_Result.Text = sb.ToString().Trim(',');

        }