public string cv(string equation)
{
jisuan x = new jisuan();
int u;//判断是否分母为0
int nm;
int weizhi = 0;
string last = null; //最终产生的结果
string rt = null; //计算结果字符串
u = equation.IndexOf("\0"); //不能出现分母为0的情况
if (u == -1)
{
rt = x.result(equation);
weizhi = rt.IndexOf(".");//不能出现结果为小数的情况
if (weizhi == -1)
{
last = equation + "=" + rt;
return(last);
}
else
{
return(" ");
}
}
else
{
return(" ");
}
}
static void Main(string[] args)
{
string bg = null;
string h = null;
string equation = null; //产生的式子
int nm = int.Parse(Console.ReadLine()); //输入生成的算式的个数
fun f = new fun(); //Console.WriteLine(nm.ToString());
for (int i = 0; i < nm; i++)
{
jisuan x = new jisuan();
equation = x.setequal();
bg = f.cv(equation);
if (bg != " ")
{
h = h + bg + "\r\n";
}
else
{
i--;
continue;
}
}
Console.WriteLine(h);
System.IO.File.WriteAllText("E:/subject.txt", h, Encoding.Default);
Console.ReadKey();
}