private void button1_Click(object sender, EventArgs e) { int num = Convert.ToInt32(txbNum1.Text); int rep = Convert.ToInt32(txbRep1.Text); this.button1.Text = "Working"; this.button1.Enabled = false; ThreadStart start2 = () => { double[] r = new double[rep]; for (int k = 0; k < rep; k++) { var oo = new OilDataAccess(); DateTime dt = DateTime.Now; var a = oo.Get("1=1", num, " id desc"); r[k] = (DateTime.Now - dt).TotalMilliseconds; } for (int k = 0; k < rep; k++) { this.richTextBox1.AppendText(string.Format("读取 {0} 条, 第 {2} 次花费 {1} ms \n", num, r[k], k + 1)); } this.button1.Text = "Run"; this.button1.Enabled = true; this.richTextBox1.AppendText("\n"); }; this.Invoke(start2); }