private async void button2_Click(object sender, EventArgs e) { button2.Enabled = false; var oprea = new CarParasOperation(); await oprea.GetAutoHomeCarSeriesData(); button2.Enabled = true; MessageBox.Show("成功"); //var del = new OpDelate( oprea.Test); //IAsyncResult ar = del.BeginInvoke( new AsyncCallback(CallbackMethod), del); }