c# 獲取數字的小數位數
阿新 • • 發佈：2022-05-23
/// <summary>
/// 獲取小數位數
/// </summary>
/// <param name="decimalV">小數</param>
/// <returns></returns>
public int GetNumberOfDecimalPlaces(double decimalV)
{
int result = 0;
string[] temp = decimalV.ToString().Split(new char[] { '.' }, StringSplitOptions.RemoveEmptyEntries); if (temp.Length == 2 && temp[1].Length > 0 && !temp[1].ToUpper().Contains("E"))
{
int index = temp[1].Length - 1;
while (temp[1][index] == '0' && index-- > 0) ;
result = index + 1;
}
else
{
temp = decimalV.ToString().Split(new char[] { '-' }, StringSplitOptions.RemoveEmptyEntries);
if (temp.Length == 2 && temp[1].Length > 0)
{
result = int.Parse(temp[1]);
}
string s = temp[0].Substring(0, temp[0].Length - 1);
temp = s.Split('.');
if (temp.Length == 2 && temp[1].Length > 0) {
int index = temp[1].Length - 1;
while (temp[1][index] == '0' && index-- > 0) ;
result = result + index + 1;
}
}
return result;
}