在C#中控制ListBox某一行的字体颜色

例1

private void Form1_Load(object sender, EventArgs e)
{
    listBox1.Items.Add("红色");
    listBox1.Items.Add("黄色");
    listBox1.Items.Add("蓝色");
    listBox1.DrawMode = DrawMode.OwnerDrawFixed; // 属性里设置
}

private void listBox1_DrawItem(object sender, DrawItemEventArgs e)
{
    Color vColor = e.ForeColor;
    switch