工作需要，写了一个，RoundDown和Round有时间再补上。
private
static
decimal
RoundUp(
decimal
val,
int
decPoint)
{
bool flagMinus = false ;
if (val < 0 )
{
val = - val;
flagMinus = true ;
}
decimal newVal = Math.Round(val, decPoint);
decimal difference = val - newVal;
if (difference > 0 )
{
decimal padding = 1 / ( decimal )(Math.Pow( 10 , decPoint));
newVal += padding;
}
if (flagMinus)
return newVal * - 1 ;
else
return newVal;
}
{
bool flagMinus = false ;
if (val < 0 )
{
val = - val;
flagMinus = true ;
}
decimal newVal = Math.Round(val, decPoint);
decimal difference = val - newVal;
if (difference > 0 )
{
decimal padding = 1 / ( decimal )(Math.Pow( 10 , decPoint));
newVal += padding;
}
if (flagMinus)
return newVal * - 1 ;
else
return newVal;
}
