关于四舍五入，进来看看，高分相送

Question

Math.Round(Convert.ToDouble(3.545)+0.0001,2)

Answer 1

Math.Round(Convert.ToDouble(3.545)+0.0001,2)

Answer 2

private string MyRound(string data, int DesLength)
{
decimal d = Convert.ToDecimal(data);
int dd; 
d *= (decimal)Math.Pow(10, DesLength);
d += 0.5m;
dd = (int)d;
return Convert.ToString(dd/Math.Pow(10, DesLength));
 }

Answer 3

Math.Round(Convert.ToDouble(3.545)+0.001,2)

Answer 4

double dbl=3.545;
string str=dbl.ToString("#0.00");