private void NewQuestion()
{
questionCount++;
questionStartTime = DateTime.Now;
questionValue = ResistorValues.GetRandom();
List <Color> l = new List <Color>();
l.AddRange(ResistorHelper.GetColorFromValue(questionValue, true));
l.Add(Color.Gold);
questionAnswer = l.ToArray();
lblValue.Text = ResistorHelper.ValueToExpress(questionValue);
}
private void NewQuestion()
{
questionCount++;
questionStartTime = DateTime.Now;
questionAnswer = ResistorValues.GetRandom();
List <Color> l = new List <Color>();
l.AddRange(ResistorHelper.GetColorFromValue(questionAnswer, true));
l.Add(Color.Gold);
questionValue = l.ToArray();
resistorImage1.UpdateBand(questionValue);
txtAnswer.Focus();
}
private void txtAnswer_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
{
long answer = 0;
try
{
answer = ResistorHelper.ExpressToValue(txtAnswer.Text);
}
catch
{
errorProvider1.BlinkRate = 100;
errorProvider1.SetError(txtAnswer, "输入有误!");
errorFlag = true;
txtAnswer.Text = "";
return;
}
if (answer == questionAnswer)
{
errorProvider1.Clear();
lastQuestionCostTime = (DateTime.Now - questionStartTime).Seconds;
if (!errorFlag)
{
correctCount++;
}
txtAnswer.Text = "";
NewQuestion();
}
else
{
errorProvider1.BlinkRate = 100;
errorProvider1.SetError(txtAnswer, "答案错误!");
errorFlag = true;
txtAnswer.Text = "";
}
}
}
