internal static Inline CreatePowerExponent(QuestionPowerExponentPart powerExponentPart)
{
InlineUIContainer uiContainer = new InlineUIContainer();
uiContainer.BaselineAlignment = BaselineAlignment.Center;
PowerExponentControl powerExponentControl = new PowerExponentControl(20, FontWeights.Medium, new SolidColorBrush(Colors.Black));
powerExponentControl.PowerExponentPart = powerExponentPart;
uiContainer.Child = powerExponentControl;
uiContainer.BaselineAlignment = BaselineAlignment.Center;
return(uiContainer);
}
private void CreateFIBQuestion(SectionBaseInfo info, Section section)
{
int minValue = 10;
int maxValue = 100;
if (info is SectionValueRangeInfo)
{
SectionValueRangeInfo rangeInfo = info as SectionValueRangeInfo;
minValue = decimal.ToInt32(rangeInfo.MinValue);
maxValue = decimal.ToInt32(rangeInfo.MaxValue);
}
Random rand = new Random((int)DateTime.Now.Ticks);
int tmpValue = maxValue;
decimal valueA = rand.Next(minValue, maxValue + 1);
Thread.Sleep(10);
decimal valueB = rand.Next(minValue, maxValue + 1);
Thread.Sleep(10);
decimal valueC = rand.Next(minValue, maxValue + 1);
decimal coeff = rand.Next(2, tmpValue + 1);
decimal symbol = rand.Next(0, 2);
// if (symbol == 0) // "+"
{
decimal result = coeff * valueA + valueB;
this.questionValueList.Add(result);
//string questionText = string.Format("已知");
//QuestionContent amn = new QuestionContent();
//QuestionPowerExponentPart an = new QuestionPowerExponentPart();
//an.BaseNumber.Content = "a";
//an.Power.Power.Content = "n";
//amn.QuestionPartCollection.Add(an);
//QuestionPowerPart mn = new QuestionPowerPart;
//QuestionPowerExponentPart mnpart = new QuestionPowerExponentPart();
//mnpart.BaseNumber.Content = "m";
//mnpart.Power.Power.Content = "n";
//mn.Power.QuestionPartCollection.Add(mnpart);
//amn.QuestionPartCollection.Add(mn);
//已知a^m=2,a^n=8,求：a^(m+n)；\n第一步, ", coeff, valueB, result);
QuestionPowerExponentPart am = new QuestionPowerExponentPart();
am.BaseNumber.Content = "a";
am.Power.Power.Content = "m";
QuestionPowerExponentPart an = new QuestionPowerExponentPart();
an.BaseNumber.Content = "a";
an.Power.Power.Content = "n";
QuestionPowerExponentPart a_m_add_n = new QuestionPowerExponentPart();
a_m_add_n.BaseNumber.Content = "a";
a_m_add_n.Power.Power.Content = "m+n";
//第一步，移项 {0}×x = {2} - {1}
FIBQuestion fibQuestion = new FIBQuestion();
fibQuestion.QuestionBlankCollection.Add(am);
fibQuestion.QuestionBlankCollection.Add(an);
fibQuestion.QuestionBlankCollection.Add(a_m_add_n);
fibQuestion.Content.Content = string.Format("已知{0}={1},{2}={3},求：{4}。",
am.PlaceHolder, valueA, an.PlaceHolder, valueB, a_m_add_n.PlaceHolder);
//fibQuestion.Content.Content = questionText;
//fibQuestion.Content.ContentType = ContentType.Text;
//fibQuestion.ShowBlankInContent = true;
QuestionBlank blankA = new QuestionBlank();
blankA.MatchOwnRefAnswer = true;
QuestionContent blankContentA = new QuestionContent();
blankContentA.Content = coeff.ToString();
blankContentA.ContentType = ContentType.Text;
blankA.ReferenceAnswerList.Add(blankContentA);
fibQuestion.QuestionBlankCollection.Add(blankA);
fibQuestion.Content.Content += blankA.PlaceHolder;
fibQuestion.Content.Content += " ×x= ";
QuestionBlank blankB = new QuestionBlank();
blankB.MatchOwnRefAnswer = true;
QuestionContent blankContentB = new QuestionContent();
blankContentB.Content = result.ToString();
blankContentB.ContentType = ContentType.Text;
blankB.ReferenceAnswerList.Add(blankContentB);
fibQuestion.QuestionBlankCollection.Add(blankB);
fibQuestion.Content.Content += blankB.PlaceHolder;
fibQuestion.Content.Content += " - ";
QuestionBlank blankC = new QuestionBlank();
blankC.MatchOwnRefAnswer = true;
QuestionContent blankContentC = new QuestionContent();
blankContentC.Content = valueB.ToString();
blankContentC.ContentType = ContentType.Text;
blankC.ReferenceAnswerList.Add(blankContentC);
fibQuestion.QuestionBlankCollection.Add(blankC);
fibQuestion.Content.Content += blankC.PlaceHolder;
//第二步{0}×x = {3}
fibQuestion.Content.Content += " \n第二步, ";
QuestionBlank blankA1 = new QuestionBlank();
blankA1.MatchOwnRefAnswer = true;
QuestionContent blankContentA1 = new QuestionContent();
blankContentA1.Content = coeff.ToString();
blankContentA1.ContentType = ContentType.Text;
blankA1.ReferenceAnswerList.Add(blankContentA1);
fibQuestion.QuestionBlankCollection.Add(blankA1);
fibQuestion.Content.Content += blankA1.PlaceHolder;
fibQuestion.Content.Content += " ×x= ";
decimal valueB1 = result - valueB;
QuestionBlank blankB1 = new QuestionBlank();
blankB1.MatchOwnRefAnswer = true;
QuestionContent blankContentB1 = new QuestionContent();
blankContentB1.Content = valueB1.ToString();
blankContentB1.ContentType = ContentType.Text;
blankB1.ReferenceAnswerList.Add(blankContentB1);
fibQuestion.QuestionBlankCollection.Add(blankB1);
fibQuestion.Content.Content += blankB1.PlaceHolder;
//第三步，两边除以系数{0}，{0}÷{0}×x = {3}÷{0}
fibQuestion.Content.Content += " \n第三步, ";
QuestionBlank blankA2 = new QuestionBlank();
blankA2.MatchOwnRefAnswer = true;
QuestionContent blankContentA2 = new QuestionContent();
blankContentA2.Content = coeff.ToString();
blankContentA2.ContentType = ContentType.Text;
blankA2.ReferenceAnswerList.Add(blankContentA2);
fibQuestion.QuestionBlankCollection.Add(blankA2);
fibQuestion.Content.Content += blankA2.PlaceHolder;
fibQuestion.Content.Content += " ÷ ";
QuestionBlank blankB2 = new QuestionBlank();
blankB2.MatchOwnRefAnswer = true;
QuestionContent blankContentB2 = new QuestionContent();
blankContentB2.Content = coeff.ToString();
blankContentB2.ContentType = ContentType.Text;
blankB2.ReferenceAnswerList.Add(blankContentB2);
fibQuestion.QuestionBlankCollection.Add(blankB2);
fibQuestion.Content.Content += blankB2.PlaceHolder;
fibQuestion.Content.Content += " ×x= ";
QuestionBlank blankC2 = new QuestionBlank();
blankC2.MatchOwnRefAnswer = true;
QuestionContent blankContentC2 = new QuestionContent();
blankContentC2.Content = valueB1.ToString();
blankContentC2.ContentType = ContentType.Text;
blankC2.ReferenceAnswerList.Add(blankContentC2);
fibQuestion.QuestionBlankCollection.Add(blankC2);
fibQuestion.Content.Content += blankC2.PlaceHolder;
fibQuestion.Content.Content += " ÷ ";
QuestionBlank blankD2 = new QuestionBlank();
blankD2.MatchOwnRefAnswer = true;
QuestionContent blankContentD2 = new QuestionContent();
blankContentD2.Content = coeff.ToString();
blankContentD2.ContentType = ContentType.Text;
blankD2.ReferenceAnswerList.Add(blankContentD2);
fibQuestion.QuestionBlankCollection.Add(blankD2);
fibQuestion.Content.Content += blankD2.PlaceHolder;
//第四步，x={4}
fibQuestion.Content.Content += " \n第四步, ";
fibQuestion.Content.Content += " x= ";
decimal valueA3 = valueB1 / coeff;
QuestionBlank blankA3 = new QuestionBlank();
blankA3.MatchOwnRefAnswer = true;
QuestionContent blankContentA3 = new QuestionContent();
blankContentA3.Content = valueA3.ToString();
blankContentA3.ContentType = ContentType.Text;
blankA3.ReferenceAnswerList.Add(blankContentA3);
fibQuestion.QuestionBlankCollection.Add(blankA3);
fibQuestion.Content.Content += blankA3.PlaceHolder;
//∴x={4}是方程的解
fibQuestion.Content.Content += string.Format(" \n∴ x=");
QuestionBlank blankA4 = new QuestionBlank();
blankA4.MatchOwnRefAnswer = true;
QuestionContent blankContentA4 = new QuestionContent();
blankContentA4.Content = valueA3.ToString();
blankContentA4.ContentType = ContentType.Text;
blankA4.ReferenceAnswerList.Add(blankContentA4);
fibQuestion.QuestionBlankCollection.Add(blankA4);
fibQuestion.Content.Content += blankA4.PlaceHolder;
fibQuestion.Content.Content += "是方程的解。";
fibQuestion.Solution.Content = string.Format(
"公式逆运用，第一步，移项 {0}×x={2}-{1}；第二步{0}×x={3}；第三步，两边除以系数{0}，{0}÷{0}×x={3}÷{0}；第四步，x={4}；答案，∴x={4}是方程的解。",
coeff, valueB, result, result - valueB, (result - valueB) / coeff);
section.QuestionCollection.Add(fibQuestion);
}
// else // "-"
{
}
}
