private void Form3_Load(object sender, EventArgs e)
        {
            listBox1.Items.Add("타월");
            listBox1.Items.Add("양말");
            listBox1.Items.Add("손수건");
            listBox1.Items.Add("긴바지");
            listBox1.Items.Add("반바지");
            listBox1.Items.Add("반팔티");
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //if(textBox1.Text != "")
                listBox1.Items.Add(textBox1.Text);
            textBox1.Text = "";
            textBox1.Focus();
            //textBox1.SelectionStart = 0;
            //textBox1.SelectionLength = textBox1.TextLength;
        }

        private void button2_Click(object sender, EventArgs e)
        {
            listBox2.Items.Add(listBox1.Text);
        }

        private void button3_Click(object sender, EventArgs e)
        {
            listBox2.Items.Remove(listBox1.Text);
        }