private void BtnOK_Click(object sender, EventArgs e) { try { int km = Convert.ToInt32(TxtKm.Text); double money; if (RdbKind1.Checked) { money = km * 2.27; } else if (RdbKind2.Checked) { money = km * 1.75; } else { money = km * 1.46; } if (ChkSpecial.Checked) { money /= 2; } if (ChkToBack.Checked) { money = money * 2 * 0.9; } LblMsg.Text = "票價:" + money.ToString("f2") + "元"; } catch { MessageBox.Show("請輸入公里數"); TxtKm.Clear(); TxtKm.Focus(); } }
private void BtnLimpiar_Click(object sender, EventArgs e) { TxtMillas.Clear(); TxtKm.Clear(); TxtMillas.Focus(); }