//分数配置
public static Fraction_Math FractionSet(double num1, double num2)
{
Fraction_Math Franction = new Fraction_Math();
int opnext = l.Next(4, 5);
Fraction_Math result = null;
Franction.Denominator = num1;
Franction.Numerator = num2;
switch (opnext)
{
case 1:
result = Franction.Add(num1, num2);
break;
case 2:
result = Franction.Sub(num1, num2);
break;
case 3:
result = Franction.Multiple(num1, num2);
break;
case 4:
result = Franction.Divided(num1, num2);
break;
}
return(result);
}
public static string Fraction(string d1, string d2, char c1)
{
Fraction_Math fraction_Math = new Fraction_Math();
DataTable dt = new DataTable();
Fraction_Math D1 = Score(d1), D2 = Score(d2);
string s;
switch (c1)
{
case '＋':
Fraction_Math st = fraction_Math.Add(D1, D2);
s = st.Numerator + "/" + st.Denominator;
break;
case '－':
st = fraction_Math.Sub(D1, D2);
s = st.Numerator + "/" + st.Denominator;
break;
case '×':
st = fraction_Math.Multiple(D1, D2);
s = st.Numerator + "/" + st.Denominator;
break;
case '÷':
st = fraction_Math.Divided(D1, D2);
s = st.Numerator + "/" + st.Denominator;
break;
default:
s = null;
break;
}
if (Regex.IsMatch(dt.Compute(s, null).ToString(), @"^[+-]?\d*[.]?$"))
{
return(dt.Compute(s, null).ToString());
}
return(s);
}