數字大小寫轉換

例:將整型數字轉換爲對應的數字大寫，999對應爲九百九十九；如果按照每四位數進行轉換或許效率更高，更準確！

 

  public static string RevertNumToBig(int num) { string bigNum = string.Empty, bigNumPart = string.Empty; //int g = 0, s = 0, b = 0, q = 0, w = 0; string[] bigNumArr = new string[] { "零", "一", "二", "三", "四", "五", "六", "七", "八", "九", "十" }; string[] levels = new string[] { "", "十", "百", "千", "萬", "億" }; int pow = 0, lvNum = 0; while ((double)num >= System.Math.Pow(10, pow)) { pow++; } while (pow > 0) { if (num > 0 || pow > 4) {//末位爲零時不顯示 lvNum = num / (int)(System.Math.Pow(10, pow - 1)); if (lvNum > 0 || (pow < 8 && !bigNum.EndsWith("零")))//去除多餘顯示的'零' bigNum += bigNumArr[lvNum]; if (pow > 4 && pow % 4 == 1) { if (!bigNum.EndsWith("億"))//當萬級都爲0時跳過 bigNum += levels[pow % 4 + 4 - pow / 4 % 2];//每4位獲得最大的數量級 } else { if (lvNum > 0) bigNum += levels[(pow % 4 == 0) ? 3 : (pow % 4 - 1)];//獲得每位的數量級 } } num -= (int)(System.Math.Pow(10, pow - 1)) * lvNum;//減去已計算的位數 pow--; } if (bigNum.Contains("億零萬")) bigNum = bigNum.Replace("零萬", string.Empty); else if (bigNum.Contains("零萬")) bigNum = bigNum.Replace("零萬", "萬"); return bigNum; }