///
/// 获取小数位数
///
/// <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;
Original: https://www.cnblogs.com/soundcode/p/16300338.html
Author: 左正
Title: c# 获取数字的小数位数
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