private void CreateMCQuestion(SectionBaseInfo sectionInfo, Section section)
{
Random rand = new Random((int)DateTime.Now.Ticks);
//int divValue = rand.Next(2, 9);
string questionText = string.Format("请选出只能分解出两个质因数相乘的数。");
MCQuestion mcQuestion = ObjectCreator.CreateMCQuestion((content) =>
{
content.Content = questionText;
content.ContentType = ContentType.Text;
return;
},
() =>
{
List <QuestionOption> optionList = new List <QuestionOption>();
int minValue = 10;
int maxValue = 100;
if (sectionInfo is SectionValueRangeInfo)
{
SectionValueRangeInfo rangeInfo = sectionInfo as SectionValueRangeInfo;
minValue = decimal.ToInt32(rangeInfo.MinValue);
maxValue = decimal.ToInt32(rangeInfo.MaxValue);
}
foreach (QuestionOption option in ObjectCreator.CreateDecimalOptions(
4, minValue, maxValue, false,
(c) =>
{
int j, k, iFlag1 = 0, iFlag2 = 0, j2, k2;
for (j = 2; j < c / 2 + 1; j++)
{
if (c % j == 0)
{
iFlag1 = 0;
iFlag2 = 0;
for (k = 2; k < j / 2 + 1; k++)
{
if (j % k == 0)
{
iFlag1 = 1;
break;
}
}
j2 = (int)(c / j);
for (k2 = 2; k2 < j2 / 2 + 1; k2++)
{
if (j2 % k2 == 0)
{
iFlag2 = 1;
break;
}
}
if (iFlag1 == 0 && iFlag2 == 0)
{
return(true);
}
}
}
return(false);
}))
{
optionList.Add(option);
}
return(optionList);
}
);
section.QuestionCollection.Add(mcQuestion);
StringBuilder strBuilder = new StringBuilder();
foreach (QuestionOption option in mcQuestion.QuestionOptionCollection)
{
QuestionContent content = option.OptionContent;
decimal value = System.Convert.ToDecimal(content.Content);
int j, k, iFlag1 = 0, iFlag2 = 0, j2 = 0, k2;
int flag = -1;
flag = 0;
for (j = 2; j < value / 2 + 1; j++)
{
if (value % j == 0)
{
iFlag1 = 0;
iFlag2 = 0;
for (k = 2; k < j / 2 + 1; k++)
{
if (j % k == 0)
{
iFlag1 = 1;
break;
}
}
j2 = (int)(value / j);
for (k2 = 2; k2 < j2 / 2 + 1; k2++)
{
if (j2 % k2 == 0)
{
iFlag2 = 1;
break;
}
}
if (iFlag1 == 0 && iFlag2 == 0)
{
flag = 1;
break;
}
}
}
if (flag == 1)
{
strBuilder.AppendLine(string.Format("{0}可分解成质因数{1}，{2}相乘，是正确答案。", value, j, j2));
}
else
{
strBuilder.AppendLine(string.Format("{0}不能分解质因数。", value));
}
}
}
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);
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 result = valueA + valueB + valueC;
this.questionValueList.Add(result);
string questionText = string.Format("({0} + {1}) + {2} = ", valueA, valueB, valueC);
FIBQuestion fibQuestion = new FIBQuestion();
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 = valueB.ToString();
blankContentA.ContentType = ContentType.Text;
blankA.ReferenceAnswerList.Add(blankContentA);
fibQuestion.QuestionBlankCollection.Add(blankA);
fibQuestion.Content.Content += blankA.PlaceHolder;
fibQuestion.Content.Content += " + ";
QuestionBlank blankB = new QuestionBlank();
blankB.MatchOwnRefAnswer = true;
QuestionContent blankContentB = new QuestionContent();
blankContentB.Content = valueA.ToString();
blankContentB.ContentType = ContentType.Text;
blankB.ReferenceAnswerList.Add(blankContentB);
fibQuestion.QuestionBlankCollection.Add(blankB);
fibQuestion.Content.Content += blankB.PlaceHolder;
fibQuestion.Solution.Content = string.Format("交换两个因数{0}和{1}的位置， 结果是{1}和{0}。", valueA, valueB);
section.QuestionCollection.Add(fibQuestion);
}
private void CreateMCQuestion(SectionBaseInfo sectionInfo, Section section)
{
Random rand = new Random((int)DateTime.Now.Ticks);
int minValue = 0;
int maxValue = 10 + 1;
if (sectionInfo is SectionValueRangeInfo)
{
SectionValueRangeInfo rangeInfo = sectionInfo as SectionValueRangeInfo;
minValue = decimal.ToInt32(rangeInfo.MinValue);
maxValue = decimal.ToInt32(rangeInfo.MaxValue);
}
string questionText = string.Format("选出是无限小数的数。");
MCQuestion mcQuestion = ObjectCreator.CreateMCQuestion((content) =>
{
content.Content = questionText;
content.ContentType = ContentType.Text;
return;
},
() =>
{
List <QuestionOption> optionList = new List <QuestionOption>();
foreach (QuestionOption temp in ObjectCreator.CreateDoubleTextOption(0, 0, minValue + 1, maxValue, ""))
{
optionList.Add(temp);
}
foreach (QuestionOption temp in ObjectCreator.CreateDoubleTextOption(0, 0, minValue + 1, maxValue, ""))
{
optionList.Add(temp);
}
foreach (QuestionOption temp in ObjectCreator.CreateDoubleTextOption(0, 0, minValue + 1, maxValue, "……"))
{
temp.IsCorrect = true;
optionList.Add(temp);
}
foreach (QuestionOption temp in ObjectCreator.CreateDoubleTextOption(minValue, maxValue + 1, minValue + 1, maxValue, ""))
{
optionList.Add(temp);
}
return(optionList);
}
);
mcQuestion.RandomOption = true;
section.QuestionCollection.Add(mcQuestion);
StringBuilder strBuilder = new StringBuilder();
foreach (QuestionOption option in mcQuestion.QuestionOptionCollection)
{
QuestionContent content = option.OptionContent;
if (content.QuestionPartCollection[0] is QuestionTextPart)
{
QuestionTextPart decimalPart = content.QuestionPartCollection[0] as QuestionTextPart;
if (decimalPart.Text.IndexOf("……") >= 0)
{
strBuilder.AppendLine(string.Format("{0}是无限小数，是正确答案。", decimalPart.Text));
}
}
}
mcQuestion.Solution.Content = strBuilder.ToString();
}
private void CreateFIBQuestion(SectionBaseInfo sectionInfo, Section section)
{
int minValue = 10;
int maxValue = 100;
if (sectionInfo is SectionValueRangeInfo)
{
SectionValueRangeInfo rangeInfo = sectionInfo as SectionValueRangeInfo;
minValue = decimal.ToInt32(rangeInfo.MinValue);
maxValue = decimal.ToInt32(rangeInfo.MaxValue);
}
if (section.QuestionCollection.Count == 0)
{
this.questionValueList.Clear();
}
Random rand = new Random((int)DateTime.Now.Ticks);
int value = 0;
int j = 0, k, iFlag1 = 0, iFlag2 = 0, j2 = 0, k2;
int flag = 0;
while (true)
{
flag = 0;
for (int i2 = 0; i2 < maxValue; i2++)
{
value = rand.Next(minValue, maxValue);
for (j = 2; j < value / 2 + 1; j++)
{
if (value % j == 0)
{
iFlag1 = 0;
iFlag2 = 0;
for (k = 2; k < j / 2 + 1; k++)
{
if (j % k == 0)
{
iFlag1 = 1;
break;
}
}
j2 = (int)(value / j);
for (k2 = 2; k2 < j2 / 2 + 1; k2++)
{
if (j2 % k2 == 0)
{
iFlag2 = 1;
break;
}
}
if (iFlag1 == 0 && iFlag2 == 0)
{
flag = 1;
break;
}
}
}
if (flag == 1)
{
break;
}
}
if (Enumerable.Where <int>(questionValueList, (c => (c == value))).Count <int>() > 0)
{
Thread.Sleep(10);
continue;
}
break;
}
questionValueList.Add(value);
string questionText = string.Format("分解质因数 {0}=", value);
FIBQuestion fibQuestion = new FIBQuestion();
fibQuestion.Content.Content = questionText;
fibQuestion.Content.ContentType = ContentType.Text;
section.QuestionCollection.Add(fibQuestion);
QuestionBlank blank1 = new QuestionBlank();
QuestionContent blankContent1 = new QuestionContent();
blankContent1.Content = j.ToString();
blankContent1.ContentType = ContentType.Text;
blank1.ReferenceAnswerList.Add(blankContent1);
fibQuestion.QuestionBlankCollection.Add(blank1);
QuestionBlank blank2 = new QuestionBlank();
QuestionContent blankContent2 = new QuestionContent();
blankContent2.Content = j2.ToString();
blankContent2.ContentType = ContentType.Text;
blank2.ReferenceAnswerList.Add(blankContent2);
fibQuestion.QuestionBlankCollection.Add(blank2);
fibQuestion.Content.Content += string.Format("{0}×{1}", blank1.PlaceHolder, blank2.PlaceHolder);
}
private void CreateMCQuestion(SectionBaseInfo sectionInfo, Section section)
{
int minValue = 10;
int maxValue = 100;
if (sectionInfo is SectionValueRangeInfo)
{
SectionValueRangeInfo rangeInfo = sectionInfo as SectionValueRangeInfo;
minValue = decimal.ToInt32(rangeInfo.MinValue);
maxValue = decimal.ToInt32(rangeInfo.MaxValue);
}
if (section.QuestionCollection.Count == 0)
{
this.questionValueList.Clear();
}
Random rand = new Random((int)DateTime.Now.Ticks);
int valueA = 0, valueC = 0;
//valueA = rand.Next(minValue, maxValue);
while (true)
{
int sumCommonDivisor = 0;
valueA = rand.Next(minValue, maxValue);
//valueB = rand.Next(minValue, maxValue);
//if (valueA < valueB)
// valueC = valueA;
//else if (valueA > valueB)
// valueC = valueB;
//else
// continue;
for (int j2 = 1; j2 < valueA; j2++)
{
if (valueA % j2 == 0)
{
sumCommonDivisor++;
}
}
if (sumCommonDivisor >= 4)
{
break;
}
}
string questionText = string.Format("请选出与{0}互质的数。", valueA);
MCQuestion mcQuestion = ObjectCreator.CreateMCQuestion((content) =>
{
content.Content = questionText;
content.ContentType = ContentType.Text;
return;
},
() =>
{
List <QuestionOption> optionList = new List <QuestionOption>();
foreach (QuestionOption option in ObjectCreator.CreateDecimalOptions(
4, minValue, maxValue, false,
(c) =>
{
int sumCommonDivisor = 0;
if (valueA < c)
{
valueC = valueA;
}
else if (valueA > c)
{
valueC = decimal.ToInt32(c);
}
else
{
return(false);
}
for (int j2 = 1; j2 < valueC; j2++)
{
if (valueA % j2 == 0 && c % j2 == 0)
{
sumCommonDivisor++;
}
}
if (sumCommonDivisor == 1)
{
return(true);
}
return(false);
}
))
{
optionList.Add(option);
}
return(optionList);
}
);
section.QuestionCollection.Add(mcQuestion);
StringBuilder strBuilder = new StringBuilder();
foreach (QuestionOption option in mcQuestion.QuestionOptionCollection)
{
QuestionContent content = option.OptionContent;
decimal value = System.Convert.ToDecimal(content.Content);
int sumCommonDivisor = 0;
if (valueA < value)
{
valueC = valueA;
}
else
{
valueC = decimal.ToInt32(value);
}
for (int j2 = 1; j2 < valueC; j2++)
{
if (valueA % j2 == 0 && value % j2 == 0)
{
sumCommonDivisor++;
}
}
if (sumCommonDivisor == 1)
{
strBuilder.AppendLine(string.Format("{0}和{1}只有公约数1，是正确答案。", valueA, value));
}
else
{
strBuilder.AppendLine(string.Format("{0}和{1}有{2}个公约数。", valueA, value, sumCommonDivisor));
}
}
mcQuestion.Solution.Content = strBuilder.ToString();
}
private void CreateMCQuestion(SectionBaseInfo sectionInfo, Section section)
{
int minValue = 10;
int maxValue = 10000;
if (sectionInfo is SectionValueRangeInfo)
{
SectionValueRangeInfo rangeInfo = sectionInfo as SectionValueRangeInfo;
minValue = decimal.ToInt32(rangeInfo.MinValue);
maxValue = decimal.ToInt32(rangeInfo.MaxValue);
}
List <int> questionValueList = new List <int>();
Random rand = new Random((int)DateTime.Now.Ticks);
int valueA = 0, valueB = 0;
int minRand = 0, maxRand = 0;
int minValueTmp = minValue, maxValueTmp = maxValue;
while (true)
{
if (minValueTmp / 10 >= 1)
{
minRand++;
minValueTmp /= 10;
}
else
{
break;
}
}
while (true)
{
if (maxValueTmp / 10 >= 1)
{
maxRand++;
maxValueTmp /= 10;
}
else
{
break;
}
}
valueB = rand.Next(minRand, maxRand + 1);
valueA = (int)(System.Math.Pow(10, valueB));
questionValueList.Add(valueA);
string questionText = string.Format("把1分成{0}份，请问可以用几位小数表示。", valueA);
MCQuestion mcQuestion = ObjectCreator.CreateMCQuestion((content) =>
{
content.Content = questionText;
content.ContentType = ContentType.Text;
return;
},
() =>
{
List <QuestionOption> optionList = new List <QuestionOption>();
int valueLst = valueB - 2, valueMst = valueB + 3;
if (minRand - 20 <= 1)
{
valueLst = 1;
}
foreach (QuestionOption option in ObjectCreator.CreateDecimalOptions(
4, valueLst, valueMst, false, (c => (c == valueB)), valueB))
{
optionList.Add(option);
}
return(optionList);
}
);
section.QuestionCollection.Add(mcQuestion);
StringBuilder strBuilder = new StringBuilder();
foreach (QuestionOption option in mcQuestion.QuestionOptionCollection)
{
QuestionContent content = option.OptionContent;
decimal value = System.Convert.ToDecimal(content.Content);
if (value == valueB)
{
strBuilder.AppendLine(string.Format("把1分成{0}份，可以用{1}位小数表示，是正确答案。", valueA, value));
}
else
{
strBuilder.AppendLine(string.Format("把1分成{0}份，不可以用{1}位小数表示。", valueA, value));
}
}
mcQuestion.Solution.Content = strBuilder.ToString();
}
protected void AppendIntegerOption(int minValue, int maxValue, List <QuestionOption> optionList, QuestionContent solution)
{
foreach (QuestionOption temp in ObjectCreator.CreateIntegerOption(minValue, maxValue))
{
optionList.Add(temp);
ArithmeticDecimalValuePart decimalValuePart = temp.OptionContent.QuestionPartCollection[0] as ArithmeticDecimalValuePart;
solution.Content += string.Format("{0}是整数，不是正确答案。\n", decimalValuePart.Value);
}
}
protected void AppendFractionOption(int minValue, int maxValue, List <QuestionOption> optionList, QuestionContent solution)
{
foreach (QuestionOption temp in ObjectCreator.CreateArithmeticFractionOption(minValue, maxValue, minValue, maxValue))
{
optionList.Add(temp);
ArithmeticFractionValuePart fractionValuePart = temp.OptionContent.QuestionPartCollection[0] as ArithmeticFractionValuePart;
solution.Content += string.Format("{0}是分数，是正确答案。\n", fractionValuePart.PlaceHolder);
solution.QuestionPartCollection.Add(fractionValuePart);
}
}
private void CreateMCQuestion(SectionBaseInfo sectionInfo, Section section)
{
Random rand = new Random((int)DateTime.Now.Ticks);
int minValue = 0;
int maxValue = 10 + 1;
if (sectionInfo is SectionValueRangeInfo)
{
SectionValueRangeInfo rangeInfo = sectionInfo as SectionValueRangeInfo;
minValue = decimal.ToInt32(rangeInfo.MinValue);
maxValue = decimal.ToInt32(rangeInfo.MaxValue);
}
string questionText = string.Format("选出是带小数的数。");
MCQuestion mcQuestion = ObjectCreator.CreateMCQuestion((content) =>
{
content.Content = questionText;
content.ContentType = ContentType.Text;
return;
},
() =>
{
List <QuestionOption> optionList = new List <QuestionOption>();
foreach (QuestionOption temp in ObjectCreator.CreateDoubleOption(0, 0, minValue, maxValue))
{
optionList.Add(temp);
}
foreach (QuestionOption temp in ObjectCreator.CreateIntegerOption(minValue, maxValue))
{
optionList.Add(temp);
}
foreach (QuestionOption temp in ObjectCreator.CreateDoubleOption(minValue + 1, maxValue + 1, minValue + 1, maxValue))
{
temp.IsCorrect = true;
optionList.Add(temp);
}
foreach (QuestionOption temp in ObjectCreator.CreateDoubleOption(0, 0, minValue + 1, maxValue))
{
optionList.Add(temp);
}
return(optionList);
}
);
mcQuestion.RandomOption = true;
section.QuestionCollection.Add(mcQuestion);
StringBuilder strBuilder = new StringBuilder();
foreach (QuestionOption option in mcQuestion.QuestionOptionCollection)
{
QuestionContent content = option.OptionContent;
if (content.QuestionPartCollection[0] is ArithmeticDecimalValuePart)
{
ArithmeticDecimalValuePart decimalPart = content.QuestionPartCollection[0] as ArithmeticDecimalValuePart;
decimal value = decimalPart.Value.Value;
if (value < 1 && value != 0)
{
strBuilder.AppendLine(string.Format("{0}是整数部分为零的小数，是纯小数。", value));
}
else if (value % 1 != 0)
{
strBuilder.AppendLine(string.Format("{0}整数部分不为零的小数，是带小数，是正确答案。", value));
}
else
{
strBuilder.AppendLine(string.Format("{0}是整数。", value));
}
}
}
mcQuestion.Solution.Content = strBuilder.ToString();
}
private void CreateMCQuestion(SectionBaseInfo sectionInfo, Section section)
{
Random rand = new Random((int)DateTime.Now.Ticks);
int minValue = 10;
int maxValue = 100;
if (sectionInfo is SectionValueRangeInfo)
{
SectionValueRangeInfo rangeInfo = sectionInfo as SectionValueRangeInfo;
minValue = decimal.ToInt32(rangeInfo.MinValue);
maxValue = decimal.ToInt32(rangeInfo.MaxValue);
}
int divValue = rand.Next(minValue, maxValue);
string questionText = string.Format("请选出至少有两个质因数的数。");
MCQuestion mcQuestion = ObjectCreator.CreateMCQuestion((content) =>
{
content.Content = questionText;
content.ContentType = ContentType.Text;
return;
},
() =>
{
List <QuestionOption> optionList = new List <QuestionOption>();
foreach (QuestionOption option in ObjectCreator.CreateDecimalOptions(
4, minValue, maxValue, false,
(c) =>
{
int j, k, iFlag = 0;
for (j = 2; j < c / 2 + 1; j++)
{
if (c % j == 0)
{
iFlag = 0;
for (k = 2; k < j / 2 + 1; k++)
{
if (j % k == 0)
{
iFlag = 1;
break;
}
}
if (iFlag == 0)
{
return(true);
}
}
}
return(false);
}))
{
optionList.Add(option);
}
return(optionList);
}
);
section.QuestionCollection.Add(mcQuestion);
StringBuilder strBuilder = new StringBuilder();
foreach (QuestionOption option in mcQuestion.QuestionOptionCollection)
{
QuestionContent content = option.OptionContent;
decimal value = System.Convert.ToDecimal(content.Content);
int j, k, iFlag = 0, flag = -1;
if (value == 0 || value == 1)
{
flag = 0;
}
for (j = 2; j < value / 2 + 1; j++)
{
if (value % j == 0)
{
if (j == 2)
{
flag = 1;
break;
}
iFlag = 0;
for (k = 2; k < j / 2 + 1; k++)
{
if (j % k == 0)
{
iFlag = 1;
break;
}
}
if (iFlag == 0)
{
flag = 1;
break;
}
}
}
if (flag == 0)
{
strBuilder.AppendLine(string.Format("0和1都不是质因数。"));
}
else if (flag == 1)
{
strBuilder.AppendLine(string.Format("{0}有两个质因数，是正确答案。", value));
}
else
{
strBuilder.AppendLine(string.Format("{0}没有质因数。", value));
}
}
mcQuestion.Solution.Content = strBuilder.ToString();
}
private void CreateMCQuestion(SectionBaseInfo sectionInfo, Section section)
{
int minValue = 0;
int maxValue = 10000;
if (sectionInfo is SectionValueRangeInfo)
{
SectionValueRangeInfo rangeInfo = sectionInfo as SectionValueRangeInfo;
minValue = decimal.ToInt32(rangeInfo.MinValue);
maxValue = decimal.ToInt32(rangeInfo.MaxValue);
}
List <int> questionValueList = new List <int>();
Random rand = new Random((int)DateTime.Now.Ticks);
int valueA = 0, valueB = 0;
int minRand = 0, maxRand = 0;
int minValueTmp = minValue, maxValueTmp = maxValue;
while (true)
{
if (minValueTmp / 10 >= 1)
{
minRand++;
minValueTmp /= 10;
}
else
{
break;
}
}
while (true)
{
if (maxValueTmp / 10 >= 1)
{
maxRand++;
maxValueTmp /= 10;
}
else
{
break;
}
}
while (true)
{
valueA = rand.Next(minRand, maxRand + 1);
valueB = rand.Next(minRand + 1, maxRand + 1);
if (valueA != valueB)
{
break;
}
}
double valueP1 = System.Math.Pow(10, valueA);
double valueP2 = System.Math.Pow(10, valueB);
double valueD1 = 1 / valueP1, valueD2 = 1 / valueP2;
questionValueList.Add(valueA);
string questionText;
//int valueC1, valueC2;
int multipleD;
if (valueD1 > valueD2)
{
//valueC1 = valueB;
//valueC2 = valueA;
multipleD = (int)(valueD1 / valueD2);
questionText = string.Format("{0}是{1}的几倍。", valueD1, valueD2);
}
else
{
//valueC1 = valueA;
//valueC2 = valueB;
multipleD = (int)(valueD2 / valueD1);
questionText = string.Format("{1}是{0}的几倍。", valueD1, valueD2);
}
MCQuestion mcQuestion = ObjectCreator.CreateMCQuestion((content) =>
{
content.Content = questionText;
content.ContentType = ContentType.Text;
return;
},
() =>
{
List <QuestionOption> optionList = new List <QuestionOption>();
int valueLst = (int)(System.Math.Pow(10, minRand)), valueMst = (int)(System.Math.Pow(10, maxRand));
if (minRand - 20 <= 0)
{
valueLst = 0;
}
foreach (QuestionOption option in ObjectCreator.CreateDecimalOptions(
4, valueLst, valueMst, false, (c => (c == multipleD)), multipleD))
{
optionList.Add(option);
}
return(optionList);
}
);
section.QuestionCollection.Add(mcQuestion);
StringBuilder strBuilder = new StringBuilder();
foreach (QuestionOption option in mcQuestion.QuestionOptionCollection)
{
QuestionContent content = option.OptionContent;
decimal value = System.Convert.ToDecimal(content.Content);
if (value == multipleD)
{
strBuilder.AppendLine(string.Format("{0}和{1}是{2}倍的关系，是正确答案。", valueD1, valueD2, value));
}
else
{
strBuilder.AppendLine(string.Format("{0}和{1}不是{2}倍的关系。", valueD1, valueD2, value));
}
}
mcQuestion.Solution.Content = strBuilder.ToString();
}
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 / 10;
decimal valueA = rand.Next(minValue, maxValue / 5 + 1);
Thread.Sleep(10);
decimal valueB = rand.Next(minValue, maxValue / 5 + 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("{0}×x+{1}={2}；\n第一步, ", coeff, valueB, result);
//第一步，移项 {0}×x = {2} - {1}
FIBQuestion fibQuestion = new FIBQuestion();
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(
"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 // "-"
{
}
}
private void CreateMCQuestion(SectionBaseInfo sectionInfo, Section section)
{
Random rand = new Random((int)DateTime.Now.Ticks);
int tryCount = 100;
while (true)
{
int minValue = 10;
int maxValue = 100;
int j = 2;
if (sectionInfo is SectionValueRangeInfo)
{
SectionValueRangeInfo rangeInfo = sectionInfo as SectionValueRangeInfo;
minValue = decimal.ToInt32(rangeInfo.MinValue);
maxValue = decimal.ToInt32(rangeInfo.MaxValue);
}
int divValue = rand.Next(minValue, maxValue);
bool validValue = false;
for (j = 3; j <= divValue / 2 + 1; j++)
{
if (divValue % j == 0)
{
validValue = true;
break;
}
}
tryCount--;
if (tryCount == 0)
{
break;
}
if (!validValue)
{
continue;
}
string questionText = string.Format("请选出自然数{0}的约数。", divValue);
int inMinValue = 2, inMaxValue = 10;
if (j / 2 > 2)
{
inMinValue = j / 2;
}
if (j * 3 > 10)
{
inMaxValue = j * 3;
}
MCQuestion mcQuestion = ObjectCreator.CreateMCQuestion((content) =>
{
content.Content = questionText;
content.ContentType = ContentType.Text;
return;
},
() =>
{
List <QuestionOption> optionList = new List <QuestionOption>();
foreach (QuestionOption option in ObjectCreator.CreateDecimalOptions(
4, inMinValue, inMaxValue, false, (c => ((divValue % c) == 0))))
{
optionList.Add(option);
}
return(optionList);
}
);
section.QuestionCollection.Add(mcQuestion);
StringBuilder strBuilder = new StringBuilder();
foreach (QuestionOption option in mcQuestion.QuestionOptionCollection)
{
QuestionContent content = option.OptionContent;
decimal value = System.Convert.ToDecimal(content.Content);
if (divValue % value == 0)
{
strBuilder.AppendLine(string.Format("{0}除以{1}等于{2}，没有余数，是正确答案。", divValue, value, divValue / value));
}
else
{
strBuilder.AppendLine(string.Format("{0}除以{1}等于{2}，余数是{3}。", divValue, value, divValue / (int)(value), divValue % value));
}
}
mcQuestion.Solution.Content = strBuilder.ToString();
break;
}
}
