bool isStartOfTen = false;
while (Num >=10)
{
if (Num == 10)
{
isStartOfTen = true;
break;
}
//Num的數(shù)位
NumLevel currentLevel = GetNumLevel(Num);
int numExponent = this.NumLevelExponent[(int)currentLevel];
Num = Convert.ToInt32(Math.Floor(Num / Math.Pow(10, numExponent)));
if (currentLevel == NumLevel.Ten && Num == 1)
{
isStartOfTen = true;
break;
}
}
return isStartOfTen;

/// <summary>
/// 合并分開的數(shù)組中文貨幣字符
/// </summary>
/// <param name="tillionNums"></param>
/// <returns></returns>
private string ContactNumChinese(double[] tillionNums)
{
string uptillionStr = CalculateChineseSign(tillionNums[0], NumLevel.Trillion, true, IsStartOfTen(tillionNums[0]));
string downtrillionStr = CalculateChineseSign(tillionNums[1], null, true,false);
string chineseCharactor = string.Empty;
//分開后的字符是否有跳位
if (GetNumLevel(tillionNums[1] * 10) == NumLevel.Trillion)
{
chineseCharactor = uptillionStr + NumLeverChineseSign[(int)NumLevel.Trillion] + downtrillionStr;
}
else
{
chineseCharactor = uptillionStr + NumLeverChineseSign[(int)NumLevel.Trillion];
if (downtrillionStr != "零元整")
{
chineseCharactor += NumChineseCharacter[0] + downtrillionStr;
}
else
{
chineseCharactor += "元整";
}
}
return chineseCharactor;
}

/// <summary>
/// 計算中文字符串
/// </summary>
/// <param name="Num">數(shù)字</param>
/// <param name="NL">數(shù)位級別 比如1000萬的 數(shù)位級別為萬</param>
/// <param name="IsExceptTen">是否以‘壹拾'開頭</param>
/// <returns>中文大寫</returns>
public string CalculateChineseSign(double Num, NumLevel? NL ,bool IsDump,bool IsExceptTen)
{
Num = Math.Round(Num, 2);
bool isDump = false;
//Num的數(shù)位
NumLevel? currentLevel = GetNumLevel(Num);
int numExponent = this.NumLevelExponent[(int)currentLevel];
string Result = string.Empty;
//整除后的結(jié)果
int prefixNum;
//余數(shù) 當為小數(shù)的時候 分子分母各乘100
double postfixNun ;
if (Num >= 1)
{
prefixNum = Convert.ToInt32(Math.Floor(Num / Math.Pow(10, numExponent)));
postfixNun = Math.Round(Num % (Math.Pow(10, numExponent)), 2);
}
else
{
prefixNum = Convert.ToInt32(Math.Floor(Num*100 / Math.Pow(10, numExponent+2)));
postfixNun = Math.Round(Num * 100 % (Math.Pow(10, numExponent + 2)), 2);
postfixNun *= 0.01;
}
if (prefixNum < 10 )
{
//避免以‘壹拾'開頭
if (!(NumChineseCharacter[(int)prefixNum] == NumChineseCharacter[1]
&& currentLevel == NumLevel.Ten && IsExceptTen))
{
Result += NumChineseCharacter[(int)prefixNum];
}
else
{
IsExceptTen = false;
}
//加上單位
if (currentLevel == NumLevel.Yuan )
{
////當為 “元” 位不為零時 加“元”。
if (NL == null)
{
Result += NumLeverChineseSign[(int)currentLevel];
//當小數(shù)點后為零時 加 "整"
if (postfixNun == 0)
{
Result += EndOfInt;
}
}
}
else
{
Result += NumLeverChineseSign[(int)currentLevel];
}
 //當真正的個位為零時加上“元”
if (NL == null && postfixNun < 1 && currentLevel > NumLevel.Yuan && postfixNun > 0)
{
Result += NumLeverChineseSign[(int)NumLevel.Yuan];
}
}
else
{
//當 前綴數(shù)字未被除盡時， 遞歸下去
NumLevel? NextNL = null;
if ((int)currentLevel >= (int)(NumLevel.TenThousand))
NextNL = currentLevel;
Result += CalculateChineseSign((double)prefixNum, NextNL, isDump, IsExceptTen);
if ((int)currentLevel >= (int)(NumLevel.TenThousand))
{
Result += NumLeverChineseSign[(int)currentLevel];
}
}
//是否跳位
// 判斷是否加零， 比如302 就要給三百 后面加零，變?yōu)?三百零二。
if (IsDumpLevel(Num))
{
Result += NumChineseCharacter[0];
isDump = true;
}
//余數(shù)是否需要遞歸
if (postfixNun > 0)
{
Result += CalculateChineseSign(postfixNun, NL, isDump, false);
}
else if (postfixNun == 0 && currentLevel > NumLevel.Yuan )
{
//當數(shù)字是以零元結(jié)尾的加上 元整 比如1000000一百萬元整
if (NL == null)
{
Result += NumLeverChineseSign[(int)NumLevel.Yuan];
Result += EndOfInt;
}
}
return Result;
}

/// <summary>
/// 外部調(diào)用的轉(zhuǎn)換方法
/// </summary>
/// <param name="Num"></param>
/// <returns></returns>
public string ConvertToChinese(string Num)
{
if (!IsValidated<string>(Num))
{
throw new OverflowException("數(shù)值格式不正確，請輸入小于9999億兆的數(shù)字且最多精確的分的金額！");
}
string chineseCharactor = string.Empty;
if (IsBigThanTillion(Num))
{
double[] tillionNums = SplitNum(Num);
chineseCharactor = ContactNumChinese(tillionNums);
}
else
{
double dNum = Convert.ToDouble(Num);
chineseCharactor = CalculateChineseSign(dNum, null, true, IsStartOfTen(dNum));
}
return chineseCharactor;
}