sleep到底怎么执行的呢?
private void button1_Click(object sender, EventArgs e)
{
textBox1.Text = "开始";
button1.Enabled = false;
Thread.Sleep(3000);
textBox2.Text = "停止";
button1.Enabled = true;
}
按下button1后,button1变成灰色,textbox1 没有显示,而是到sleep结束后textbox1 和textbox2 同时显示,请问这个怎么回事,到底sleep怎么执行的呢?