以下代码button2_Click与 button3_Click为button2与button3已绑定事件处理程序，当用户轮流点击button2和button3若干次后，再点击button1时出现系统CPU100%，请问为什么？应如何解决？

private void button2_Click(object sender, EventArgs e)

{

this.button1.Click += new EventHandler(button1_Click);

}

private void button3_Click(object sender, EventArgs e)

{

this.button1.Click -= new EventHandler(button1_Click);

}

private void button1_Click(object sender, EventArgs e)

{

this.Text = DateTime.Now.ToString();

}

private void button2_Click(object sender, EventArgs e)

{

this.button1.Click += new EventHandler(button1_Click);

}

private void button3_Click(object sender, EventArgs e)

{

this.button1.Click -= new EventHandler(button1_Click);

}

int intCount = 0;

private void button1_Click(object sender, EventArgs e)

{

this.Text = intCount.ToString();
intCount++;
}



这样改一下更能体现出程序的意义