public TestPaper(int n, int range, int length, bool random)
{
numberOfQuestions = n;
papers = new Arithmetic[numberOfQuestions];
for (int i = 0; i < numberOfQuestions; i++)
{
Arithmetic arith = new Arithmetic(range, length, !random);
papers[i] = arith;
}
}
void InitializeTestPaper()
{
totalNum = GetTotalNum();
currentNum = 0;
leftNum = totalNum - currentNum;
wrongNum = 0;
testPaper = new TestPaper(totalNum, GetRange(), GetLength(), GetIsRandom()); //初始化从entry里取值string to int怎么搞。
currentArithmetic = testPaper.papers[currentNum];
BindingContext = testPaper; //实际没用上，还不会用binding
labelTotalNum.Text = "Total Number: " + totalNum.ToString();
RefleshStatus();
}
//得重写，乱七八糟
void buttomConfirmInput_Clicked(System.Object sender, System.EventArgs e)
{
//testLabel.Text = entryInputAnswer.Text;
if (currentArithmetic.Answer() == entryInputAnswer.Text) //回答正确
{
if (currentNum < totalNum - 1) //不是最后一题
{
currentNum++;
leftNum = totalNum - currentNum;
currentArithmetic = testPaper.papers[currentNum];
RefleshStatus();
}
else //最后一题
{
DisplayAlert("DONE", $"Total:{totalNum},Wrong:{wrongNum},Score:{(int)(100 * (totalNum - wrongNum) / totalNum)}", "YES");
InitializeTestPaper();
RefleshStatus();
}
}
else
{
if ((currentArithmetic.Answer() == "+" || currentArithmetic.Answer() == "-") &&
(currentArithmetic.ArithmeticString()[currentArithmetic.EmptySite() + 1] == "0") &&
(entryInputAnswer.Text == "+" || entryInputAnswer.Text == "-"))
{ //照抄正确的那步，应该重写。
if (currentNum < totalNum - 1) //不是最后一题
{
currentNum++;
leftNum = totalNum - currentNum;
currentArithmetic = testPaper.papers[currentNum];
RefleshStatus();
}
else //最后一题
{
DisplayAlert("DONE", $"Total:{totalNum},Wrong:{wrongNum},Score:{(int)(100 * (totalNum - wrongNum) / totalNum)}", "YES");
InitializeTestPaper();
RefleshStatus();
}
}
else
{
wrongNum++;
RefleshStatus();
}
}
}