private async void button6_Click(object sender, EventArgs e) { // 读取型号 button6.Enabled = false; OperateResult <string> readResult = await melsec_net.ReadPlcTypeAsync( ); if (readResult.IsSuccess) { MessageBox.Show("Type:" + readResult.Content); } else { MessageBox.Show("Failed: " + readResult.ToMessageShowString( )); } button6.Enabled = true; }