In dealing with some of the data, we want to be able to use the "rounding" method, but C # uses the "four six into 50% pairs" method, such as the following example, is the "four six into 50% pairs" results obtained:
Double D1 = Math.Round (1.25, 1);//1.2
Double D2 = Math.Round (1.24, 1);//1.2
Double D3 = Math.Round (1.26, 1);//1.3
Double d4 = Math.Round (1.35, 1);//1.4
In order to achieve "rounding" in C #, I wrote the following function:
<summary>
Rounding method of implementing data
</summary>
<param name= "V" > Data to be processed </param>
<param name= "x" > Number of decimal digits reserved </param>
<returns> results after rounding </returns>
Private double Round (double v, int x)
{
BOOL isnegative = false;
If it's a negative number
if (v < 0)
{
Isnegative = true;
v =-V;
}
int ivalue = 1;
for (int i = 1; i <= x; i++)
{
Ivalue = Ivalue * 10;
}
Double Int = Math.Round (v * ivalue + 0.5,0);
v = int/ivalue;
if (isnegative)
{
v =-V;
}
return v;
}
After a simple test, the above function can be rounded up by the data.
C # Handling Rounding issues
