数字金额转换成大写金额 - 牛建荣

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01.using System;   
02.using System.Data;   
03.using System.Configuration;   
04.using System.Web;   
05.using System.Web.Security;   
06.using System.Web.UI;   
07.using System.Web.UI.WebControls;   
08.using System.Web.UI.WebControls.WebParts;   
09.using System.Web.UI.HtmlControls;   
10.namespace FIH   
11.{   
12.    /// <summary>   
13.    /// 功能：字符串处理函数集   
14.    /// </summary>   
15.    public class NumToBig   
16.    {  
17.        #region 私有成员   
18.        /// <summary>   
19.        /// 输入字符串   
20.        /// </summary>   
21.        private string inputString = null;   
22.        /// <summary>   
23.        /// 输出字符串   
24.        /// </summary>   
25.        private string outString = null;   
26.        /// <summary>   
27.        /// 提示信息   
28.        /// </summary>   
29.        private string noteMessage = null;  
30.        #endregion  
31. 
32.        #region 公共属性   
33.        /// <summary>   
34.        /// 输入字符串   
35.        /// </summary>   
36.        public string InputString   
37.        {   
38.            get { return inputString; }   
39.            set { inputString = value; }   
40.        }   
41.        /// <summary>   
42.        /// 输出字符串   
43.        /// </summary>   
44.        public string OutString   
45.        {   
46.            get { return outString; }   
47.            set { outString = value; }   
48.        }   
49.        /// <summary>   
50.        /// 提示信息   
51.        /// </summary>   
52.        public string NoteMessage   
53.        {   
54.            get { return noteMessage; }   
55.            set { noteMessage = value; }   
56.        }  
57.        #endregion  
58. 
59.        #region 构造函数   
60.        public NumToBig()   
61.        {   
62.            //   
63.            // TODO: 在此处添加构造函数逻辑   
64.            //   
65.        }  
66.        #endregion  
67. 
68.        #region 公共方法   
69.        public void ConvertToChineseNum()   
70.        {   
71.            string numList = "零壹贰叁肆伍陆柒捌玖";   
72.            string rmbList = "分角元拾佰仟万拾佰仟亿拾佰仟万";   
73.            double number = 0;   
74.            string tempOutString = null;   
75.  
76.            try  
77.            {   
78.                number = double.Parse(this.inputString);   
79.            }   
80.            catch  
81.            {   
82.                this.noteMessage = "传入参数非数字！";   
83.                return;   
84.            }   
85.  
86.            if (number > 9999999999999.99)   
87.                this.noteMessage = "超出范围的人民币值";   
88.  
89.            //将小数转化为整数字符串   
90.            string tempNumberString = Convert.ToInt64(number * 100).ToString();   
91.            int tempNmberLength = tempNumberString.Length;   
92.            int i = 0;   
93.            while (i < tempNmberLength)   
94.            {   
95.                int oneNumber = Int32.Parse(tempNumberString.Substring(i, 1));   
96.                string oneNumberChar = numList.Substring(oneNumber, 1);   
97.                string oneNumberUnit = rmbList.Substring(tempNmberLength - i - 1, 1);   
98.                if (oneNumberChar != "零")   
99.                    tempOutString += oneNumberChar + oneNumberUnit;   
100.                else  
101.                {   
102.                    if (oneNumberUnit == "亿" || oneNumberUnit == "万" || oneNumberUnit == "元" || oneNumberUnit == "零")   
103.                    {   
104.                        while (tempOutString.EndsWith("零"))   
105.                        {   
106.                            tempOutString = tempOutString.Substring(0, tempOutString.Length - 1);   
107.                        }   
108.  
109.                    }   
110.                    if (oneNumberUnit == "亿" || (oneNumberUnit == "万" && !tempOutString.EndsWith("亿")) || oneNumberUnit == "元")   
111.                    {   
112.                        tempOutString += oneNumberUnit;   
113.                    }   
114.                    else  
115.                    {   
116.                        bool tempEnd = tempOutString.EndsWith("亿");   
117.                        bool zeroEnd = tempOutString.EndsWith("零");   
118.                        if (tempOutString.Length > 1)   
119.                        {   
120.                            bool zeroStart = tempOutString.Substring(tempOutString.Length - 2, 2).StartsWith("零");   
121.                            if (!zeroEnd && (zeroStart || !tempEnd))   
122.                                tempOutString += oneNumberChar;   
123.                        }   
124.                        else  
125.                        {   
126.                            if (!zeroEnd && !tempEnd)   
127.                                tempOutString += oneNumberChar;   
128.                        }   
129.                    }   
130.                }   
131.                i += 1;   
132.            }   
133.  
134.            while (tempOutString.EndsWith("零"))   
135.            {   
136.                tempOutString = tempOutString.Substring(0, tempOutString.Length - 1);   
137.            }   
138.  
139.            while (tempOutString.EndsWith("元"))   
140.            {   
141.                tempOutString = tempOutString + "整";   
142.            }   
143.  
144.            this.outString = tempOutString;   
145.        }  
146.        #endregion   
147.    }   
148.}