//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); }