using System;
using System.Diagnostics;
namespace Lhyi.Helper
{
///
/// 将一个基本数据类型转换为另一个基本数据类型。
///
public static class Convert
{
#region 常量
///
/// 每毫米等于的英寸数值
///
private const float MM_OF_INCH = 0.039370078740157f;
#endregion
#region 方法
#region 对 英寸 的转换
///
/// 将毫米转换为英寸
///
/// 毫米
///
public static float MmToInch(float mm)
{
float d = (float)(mm * Convert.MM_OF_INCH);
return d * 100;
}
#endregion
#region 对 Float 的转换
///
/// 将 object 类型转换为 float
///
/// 需要转换的数值
/// 如果转换失败，则返回 0
///
public static float ToFloat(object obj)
{
float result = 0.0f;
float.TryParse(obj.ToString(), out result);
return result;
}
#endregion
#region 对 Int 的转换
///
/// 将 object 类型转换为 int
///
/// 需要转换的数值
/// 如果转换失败，则返回 0
///
public static int ToInt32(object obj)
{
int result = 0;
Int32.TryParse(obj.ToString(), out result);
return result;
}
///
/// 将 string 类型转换为 int
///
/// 需要转换的数值
/// 如果转换失败，则返回 0
public static int ToInt32(string str)
{
int result = -1;
int.TryParse(str, out result);
return result;
}
#endregion
#region 将 数值 转换为中文大写字符串
///
/// 转换数字金额主函数（包括小数）
/// 数字字符串
/// 转换成中文大写后的字符串或者出错信息提示字符串
///
public static string ToChineseStr(string str)
{
string result = string.Empty;
try
{
if (!Convert.IsDecimal(str)) // 判断是否为正整数
return result;
if (Double.Parse(str) > double.MaxValue) // 判断数值是否太大
return result;
char sign = '.'; //小数点
string[] splitstr = str.Split(sign); //按小数点分割字符串
if (splitstr.Length == 1) //只有整数部分
{
result = Convert.ToData(str) + "圆整";
}
else //有小数部分
{
result = Convert.ToData(splitstr[0]) + "圆";//转换整数部分
result += Convert.ToDecimalStr(splitstr[1]);//转换小数部分
}
}
catch (Exception ex)
{
Debug.WriteLine("Convert.ToChineseStr(string) :: " + ex.Message);
throw ex;
}
return result;
}
///
/// 判断是否是正数字字符串
/// 如果是数字，返回true，否则返回false
///
private static bool IsDecimal(string str)
{
Decimal d = -1;
Decimal.TryParse(str, out d);
if (d < 0)
return false;
else
return true;
}
///
/// 转换数字（整数）
///
private static string ToData(string str)
{
string rstr = "";
try
{
string tmpstr = "";
int strlen = str.Length;
if (strlen <= 4)
{
rstr = ToDigit(str);
}
else
{
if (strlen <= 8)//数字长度大于四位，小于八位
{
tmpstr = str.Substring(strlen - 4, 4);//先截取最后四位数字
rstr = ToDigit(tmpstr);//转换最后四位数字
tmpstr = str.Substring(0, strlen - 4);//截取其余数字
//将两次转换的数字加上萬后相连接
rstr = String.Concat(ToDigit(tmpstr) + "萬", rstr);
rstr = rstr.Replace("零萬", "萬");
rstr = rstr.Replace("零零", "零");
}
else
if (strlen <= 12)//数字长度大于八位，小于十二位
{
tmpstr = str.Substring(strlen - 4, 4);//先截取最后四位数字
rstr = ToDigit(tmpstr);//转换最后四位数字
tmpstr = str.Substring(strlen - 8, 4);//再截取四位数字
rstr = String.Concat(ToDigit(tmpstr) + "萬", rstr);
tmpstr = str.Substring(0, strlen - 8);
rstr = String.Concat(ToDigit(tmpstr) + "億", rstr);
rstr = rstr.Replace("零億", "億");
rstr = rstr.Replace("零萬", "零");
rstr = rstr.Replace("零零", "零");
rstr = rstr.Replace("零零", "零");
}
}
strlen = rstr.Length;
if (strlen >= 2)
{
switch (rstr.Substring(strlen - 2, 2))
{
case "佰零": rstr = rstr.Substring(0, strlen - 2) + "佰"; break;
case "仟零": rstr = rstr.Substring(0, strlen - 2) + "仟"; break;
case "萬零": rstr = rstr.Substring(0, strlen - 2) + "萬"; break;
case "億零": rstr = rstr.Substring(0, strlen - 2) + "億"; break;
}
}
}
catch (Exception ex)
{
Debug.WriteLine("Convert.ToData(string) :: " + ex.Message);
throw ex;
}
return rstr;
}
///
/// 转换数字（小数部分）
///
private static string ToDecimalStr(string str)
{
string result = string.Empty;
try
{
int strlen = str.Length;
if (strlen == 1)
{
result = Convert.To1Digit(str) + "角";
}
else
{
string tmpstr = str.Substring(0, 1);
result = Convert.To1Digit(tmpstr) + "角";
tmpstr = str.Substring(1, 1);
result += Convert.To1Digit(tmpstr) + "分";
result = result.Replace("零分", "");
result = result.Replace("零角", "");
}
}
catch (Exception ex)
{
Debug.WriteLine("Convert.ToDecimalStr(string) :: " + ex.Message);
throw ex;
}
return result;
}
///
/// 转换的字符串（四位以内）
///
private static string ToDigit(string str)
{
string result = string.Empty;
try
{
switch (str.Length)
{
case 1: result = To1Digit(str); break;
case 2: result = To2Digit(str); break;
case 3: result = To3Digit(str); break;
case 4: result = To4Digit(str); break;
}
result = result.Replace("拾零", "拾");
}
catch (Exception ex)
{
Debug.WriteLine("Convert.ToDigit(string) :: " + ex.Message);
throw ex;
}
return result;
}
///
/// 转换四位数字
///
private static string To4Digit(string str)
{
string result = string.Empty;
try
{
string str1 = str.Substring(0, 1);
string str2 = str.Substring(1, 1);
string str3 = str.Substring(2, 1);
string str4 = str.Substring(3, 1);
result += Convert.To1Digit(str1) + "仟";
result += Convert.To1Digit(str2) + "佰";
result += Convert.To1Digit(str3) + "拾";
result += Convert.To1Digit(str4);
result = result.Replace("零仟", "零");
result = result.Replace("零佰", "零");
result = result.Replace("零拾", "零");
result = result.Replace("零零", "零");
result = result.Replace("零零", "零");
result = result.Replace("零零", "零");
}
catch (Exception ex)
{
Debug.WriteLine("Convert.To4Digit(string) :: " + ex.Message);
throw ex;
}
return result;
}
///
/// 转换三位数字
///
private static string To3Digit(string str)
{
string result = string.Empty;
try
{
string str1 = str.Substring(0, 1);
string str2 = str.Substring(1, 1);
string str3 = str.Substring(2, 1);
result += Convert.To1Digit(str1) + "佰";
result += Convert.To1Digit(str2) + "拾";
result += Convert.To1Digit(str3);
result = result.Replace("零佰", "零");
result = result.Replace("零拾", "零");
result = result.Replace("零零", "零");
result = result.Replace("零零", "零");
}
catch (Exception ex)
{
Debug.WriteLine("Convert.To3Digit(string) :: " + ex.Message);
throw ex;
}
return result;
}
///
/// 转换二位数字
///
private static string To2Digit(string str)
{
string result = string.Empty;
try
{
string str1 = str.Substring(0, 1);
string str2 = str.Substring(1, 1);
result += Convert.To1Digit(str1) + "拾";
result += Convert.To1Digit(str2);
result = result.Replace("零拾", "零");
result = result.Replace("零零", "零");
}
catch (Exception ex)
{
Debug.WriteLine("Convert.To2Digit(string) :: " + ex.Message);
throw ex;
}
return result;
}
///
/// 将一位数字转换成中文大写数字
///
private static string To1Digit(string str)
{
try
{
//"零壹贰叁肆伍陆柒捌玖拾佰仟萬億圆整角分"
switch (str)
{
case "1": return "壹";
case "2": return "贰";
case "3": return "叁";
case "4": return "肆";
case "5": return "伍";
case "6": return "陆";
case "7": return "柒";
case "8": return "捌";
case "9": return "玖";
default: return "零";
}
}
catch (Exception ex)
{
Debug.WriteLine("Convert.To1Digit(string) :: " + ex.Message);
throw ex;
}
}
#endregion
#endregion
}
}
