急求。。。。C#题

Question

在WinForm里面，有十个button，每个button都有不同的Click事件，
在点击第十一个button的时候，前面十个button依次被执行
这个要怎么写啊？

Answer 1

private void button1_Click(object sender, EventArgs e)
        {
            MessageBox.Show("我是按钮1");
        }        private void button2_Click(object sender, EventArgs e)
        {
            MessageBox.Show("我是按钮2");
        }        private void button3_Click(object sender, EventArgs e)
        {
            MessageBox.Show("我是按钮3");
        }        private void button4_Click(object sender, EventArgs e)
        {
            MessageBox.Show("我是按钮4");
        }        private void button5_Click(object sender, EventArgs e)
        {
            button1.PerformClick();
            button2.PerformClick();
            button3.PerformClick();
            button4.PerformClick(); 
        }

Answer 2

        public Form5()
        {
            InitializeComponent();            button11.Click += button1_Click;
            button11.Click += button2_Click;
            button11.Click += button3_Click;
            button11.Click += button4_Click;
            button11.Click += button5_Click;
            button11.Click += button6_Click;
            button11.Click += button7_Click;
            button11.Click += button8_Click;
            button11.Click += button9_Click;
            button11.Click += button10_Click;
        }