public int[] Arithmetic(int[] b1, int[] b2, char s, ref string problem)
{
int[] result = new int[2];
switch (s)
{
case '+':
s1 = b1[0] * b2[1] + b2[0] * b1[1];
s2 = b1[1] * b2[1];
calculation c1 = new calculation();
s3 = c1.GetCommon(s1, s2);
result[0] = s1 / s3;
result[1] = s2 / s3;
break;
case '-':
s1 = b1[0] * b2[1] - b2[0] * b1[1];
s2 = b1[1] * b2[1];
calculation c2 = new calculation();
s3 = c2.GetCommon(s1, s2);
result[0] = s1 / s3;
result[1] = s2 / s3;
//运算过程中出现负数，则主函数进行判断，舍去后重新生成计算式
if (s1 < 0)
{
problem = "重新生成";
}
break;
case '*':
s1 = b1[0] * b2[0];
s2 = b1[1] * b2[1];
calculation c3 = new calculation();
s3 = c3.GetCommon(s1, s2);
result[0] = s1 / s3;
result[1] = s2 / s3;
break;
case '/':
s1 = b1[0] * b2[1];
s2 = b1[1] * b2[0];
calculation c4 = new calculation();
s3 = c4.GetCommon(s1, s2);
result[0] = s1 / s3;
result[1] = s2 / s3;
break;
}
return(result);
}
static void Main(string[] args)
{
int r = 10;
int n = 1;
int[] result = new int[2];
Console.WriteLine("请输入生成题目的数量");
string nn = Console.ReadLine();
while (int.TryParse(nn, out n) == false)
{
Console.WriteLine("输入有误，请重新输入数字");
nn = Console.ReadLine();
}
Console.WriteLine("请输入题目中数值的范围");
nn = Console.ReadLine();
while (int.TryParse(nn, out r) == false)
{
Console.WriteLine("输入有误，请重新输入数字");
nn = Console.ReadLine();
}
calculation c = new calculation();
int[][] ic = new int[n][];//n个计算式中计算数的和数
for (int i = 0; i < n; i++)
{
string a = c.GetProblem(r, ref result, ref ic[i]);
for (int j = 0; j < i; j++)
{
if (ic[j] == ic[i])
{
a = "重新生成";
}
}
while (a == "重新生成")
{
a = c.GetProblem(r, ref result, ref ic[i]);
for (int j = 0; j < i; j++)
{
if (ic[j] == ic[i])
{
a = "重新生成";
}
}
}
//将题目存入Exercises.txt中，可追加
using (StreamWriter sw = new StreamWriter(@"F:\作业\软件工程\2\Exercises.txt", true))
{
sw.WriteLine(i + ".四则运算题目 " + a);
}
//将答案存入Answers.txt
using (StreamWriter sw = new StreamWriter(@"F:\作业\软件工程\2\Answers.txt", true))
{
if (result[0] == 0 || result[1] == 1)
{
sw.WriteLine(i + ".答案 " + result[0].ToString());
}
else
{
sw.WriteLine(i + ".答案 " + result[0].ToString() + "/" + result[1].ToString());
}
}
}
Console.ReadKey();
}