1.把金额数据从小写转换为大写
namespace HaiNuo
{
/*****************************************************************************************
* 类名:DecimalToUpper *
* 功能:把金额数据从小写转换为大写 *
* 限制条件:金额小于一万亿,且少于两位小数 *
* 用法:DecimalToUpper x = new DecimalToUpper(); *
* this.textBox2.Text = x.ToUpper(d); *
*****************************************************************************************/
public class DecimalToUpper
{
public DecimalToUpper()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
/// <summary>
/// 小写金额转换为大写金额,其他条件:金额小于一万亿,最多两位小数
/// </summary>
/// <param name="d">源金额,d 《 1000000000000.00(一万亿),且最多两位小数 </param>
/// <returns>结果,大写金额</returns>
public string ToUpper(decimal d)
{
if (d == 0)
return "零元整";
string je = d.ToString("####.00");
if (je.Length > 15)
return "";
je = new String('0',15 - je.Length) + je; //若小于15位长,前面补0
string stry = je.Substring(0,4); //取得'亿'单元
string strw = je.Substring(4,4); //取得'万'单元
string strg = je.Substring(8,4); //取得'元'单元
string strf = je.Substring(13,2); //取得小数部分
string str1 = "",str2 = "",str3 = "";
str1 = this.getupper(stry,"亿"); //亿单元的大写
str2 = this.getupper(strw,"万"); //万单元的大写
str3 = this.getupper(strg,"元"); //元单元的大写
string str_y = "", str_w = "";
if (je[3] == '0' || je[4] == '0') //亿和万之间是否有0
str_y = "零";
if (je[7] == '0' || je[8] == '0') //万和元之间是否有0
str_w = "零";
string ret = str1 + str_y + str2 + str_w + str3; //亿,万,元的三个大写合并
for (int i = 0 ;i < ret.Length;i++) //去掉前面的"零"
{
if (ret[i] != '零')
{
ret = ret.Substring(i);
break;
}
}
for (int i = ret.Length - 1;i > -1 ;i--) //去掉最后的"零"
{
if (ret[i] != '零')
{
ret = ret.Substring(0,i+1);
break;
}
}
if (ret[ret.Length - 1] != '元') //若最后不位不是'元',则加一个'元'字
ret = ret + "元";
if (ret == "零零元") //若为零元,则去掉"元数",结果只要小数部分
ret = "";
if (strf == "00") //下面是小数部分的转换
{
ret = ret + "整";
}
else
{
string tmp = "";
tmp = this.getint(strf[0]);
if (tmp == "零")
ret = ret + tmp;
else
ret = ret + tmp + "角";
tmp = this.getint(strf[1]);
if (tmp == "零")
ret = ret + "整";
else
ret = ret + tmp + "分";
}
if (ret[0] == '零')
{
ret = ret.Substring(1); //防止0.03转为"零叁分",而直接转为"叁分"
}
return ret; //完成,返回
}
/// <summary>
/// 把一个单元转为大写,如亿单元,万单元,个单元
/// </summary>
/// <param name="str">这个单元的小写数字(4位长,若不足,则前面补零)</param>
/// <param name="strDW">亿,万,元</param>
/// <returns>转换结果</returns>
private string getupper(string str,string strDW)
{
if (str == "0000")
return "";
string ret = "";
string tmp1 = this.getint(str[0]) ;
string tmp2 = this.getint(str[1]) ;
string tmp3 = this.getint(str[2]) ;
string tmp4 = this.getint(str[3]) ;
if (tmp1 != "零")
{
ret = ret + tmp1 + "仟";
}
else
{
ret = ret + tmp1;
}
if (tmp2 != "零")
{
ret = ret + tmp2 + "佰";
}
else
{
if (tmp1 != "零") //保证若有两个零'00',结果只有一个零,下同
ret = ret + tmp2;
}
if (tmp3 != "零")
{
ret = ret + tmp3 + "拾";
}
else
{
if (tmp2 != "零")
ret = ret + tmp3;
}
if (tmp4 != "零")
{
ret = ret + tmp4 ;
}
if (ret[0] == '零') //若第一个字符是'零',则去掉
ret = ret.Substring(1);
if (ret[ret.Length - 1] == '零') //若最后一个字符是'零',则去掉
ret = ret.Substring(0,ret.Length - 1);
return ret + strDW; //加上本单元的单位
}
/// <summary>
/// 单个数字转为大写
/// </summary>
/// <param name="c">小写阿拉伯数字 0---9</param>
/// <returns>大写数字</returns>
private string getint(char c)
{
string str = "";
switch ( c )
{
case '0':
str = "零";
break;
case '1':
str = "壹";
break;
case '2':
str = "贰";
break;
case '3':
str = "叁";
break;
case '4':
str = "肆";
break;
case '5':
str = "伍";
break;
case '6':
str = "陆";
break;
case '7':
str = "柒";
break;
case '8':
str = "拐";
break;
case '9':
str = "玖";
break;
}
return str;
}
}
}
2.如何將數字前面補0,補足設定的長度
例如 將 123 前面補0,補到長度為6,可以透過 String.PadLeft 與 String.Format 的方式
//將數字前面補0,補足長度為6
String snum = "123";
String pnum = snum.PadLeft(6, '0');
String fnum = String.Format("...{0:000000}",Convert.ToInt16(snum));
MessageBox.Show( "原始字串 : " + snum + "\n 透過 PadLeft : " + pnum + "\n 透過 String.Format : " + fnum);
3.生成编号
/// <summary>
/// 取得编号
/// 如GetNo("LZD25"),返回"LZD26"
/// </summary>
/// <param name="strIn">基础编号</param>
/// <returns></returns>
public static string GetNo(string strIn)
{
if (strIn == "" || strIn == null)
{
return "0001";
}
string chars = "";
string digites = "";
//字符串中末尾的数字序列起始位置,-1表示没有数字
int index=-1;
//获取字符串中末尾的数字序列起始位置
for (int i = 0; i < strIn.Length; i++)
{
if (Char.IsDigit(strIn[i]))
{
index = i;
digites += strIn[i].ToString();
}
else //非数字
{
chars = strIn.Substring(0, i);
index = -1;
digites = "";
}
}
if (index == -1)
{
return strIn + "1";
}
else
{
return ""+chars + (Convert.ToInt32(digites) + 1);
}
}