为了业务的需要无聊之极的写了一个输出中文数字的方法，效率上勉强过得去，如果你有什么更好的方法，跟贴吧。
1
2 /**//// <summary>
3 /// 中文计数
4 /// </summary>
5 /// <param name="num">[1 - 99999]</param>
6 /// <returns></returns>
7 public static string NumToChineseNumStr(int num)
8 {
9 if(num <= 0 || num > 99999)
10 throw new ArgumentException("num");
11 string[] GradeChar = new string[]{"","十","百","千","万"};
12 string[] DigitChar = new string[]{"一","二","三","四","五","六","七","八","九"};
13 char zero = '零';
14
15 int length = (int) Math.Log10(num) + 1;
16 StringBuilder output = new StringBuilder(length);
17 int[] input = new int[length];
18 int index = -1;
19 while(++index != length)
20 {
21 input[index] = (num / (length - index == 1? 1 : (int)Math.Pow(10, length -index -1))) % 10;
22 }
23
24 bool needFix = false;
25 if(input.Length == 2 && input[0] == 1)
26 needFix = true;
27
28 for(int pos = 0; pos < input.Length; pos ++)
29 {
30 if(input[pos] == 0)
31 {
32 if(output[output.Length -1] != zero)
33 output.Append(zero);
34 continue;
35 }
36 else if(!(pos == 0 && needFix))
37 {
38 output.Append(DigitChar[input[pos] -1]);
39 }
40 output.Append(GradeChar[input.Length - pos -1]);
41 }
42 if(output[output.Length - 1] == zero)
43 output.Remove(output.Length - 1, 1);
44 return output.ToString();
45 }
46
