使用Invoke解决多线程间的控件访问出错

/// <summary>
/// 按钮点击事件处理程序
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button1_Click(object sender, EventArgs e)
{
    //创建新线程
    Thread processorThread = null;
    processorThread = new Thread(new ThreadStart(Done));
    processorThread.IsBackground = true;
    processorThread.SetApartmentState(ApartmentState.STA);
    processorThread.Start();
}

/// <summary>
/// 更新textBox1值
/// </summary>
private void Done()
{
    textBox1.Text = "www.mzwu.com";
}

/// <summary>
/// 按钮点击事件处理程序
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button1_Click(object sender, EventArgs e)
{
    //创建新线程
    Thread processorThread = null;
    processorThread = new Thread(new ThreadStart(Done));
    processorThread.IsBackground = true;
    processorThread.SetApartmentState(ApartmentState.STA);
    processorThread.Start();
}

delegate void WriteInvoke(string msg);
private void Write(string msg)
{
    textBox1.Text = msg;
}
/// <summary>
/// 更新textBox1值
/// </summary>
private void Done()
{
    this.Invoke(new WriteInvoke(Write), new object[] { "www.mzwu.com" });
}