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using System;
using System.Collections.Generic;
using System.Globalization;
using System.Text;
public class TaxExample
{
public static void Main(string[] args)
{
Console.OutputEncoding = Encoding.UTF8;
/**
* 含税金额计算示例
*
* 不含税单价 = 含税单价/(1+ 税率) noTaxDj = dj / (1 + sl)
* 不含税金额 = 不含税单价*数量 noTaxJe = noTaxDj * spsl
* 含税金额 = 含税单价*数量 je = dj * spsl
* 税额 = 税额 = 1 / (1 + 税率) * 税率 * 含税金额 se = 1 / (1 + sl) * sl * je
* hjse= se1 + se2 + ... + seN
* jshj= je1 + je2 + ... + jeN
* 价税合计 =合计金额+合计税额 jshj = hjje + hjse
*
*/
/**
* 含税计算示例1 无价格 无数量
* @link https://fa-piao.com/fapiao.html?action=data1&source=github
*
*/
example1();
Console.WriteLine("---------------------------------------------");
/**
* 含税计算示例2 有价格 有数量
* @link https://fa-piao.com/fapiao.html?action=data3&source=github
*
*/
example2();
Console.WriteLine("---------------------------------------------");
/**
* 含税计算示例3 有价格自动算数量 购买猪肉1000元,16.8元/斤
* @link https://fa-piao.com/fapiao.html?action=data5&source=github
*
*/
example3();
Console.WriteLine("---------------------------------------------");
/**
* 含税计算示例4 有数量自动算价格 购买接口服务1000元7次
* @link https://fa-piao.com/fapiao.html?action=data7&source=github
*
*/
example4();
Console.WriteLine("---------------------------------------------");
/**
* 不含税计算示例
* 金额 = 单价 * 数量 je = dj * spsl
* 税额 = 金额 * 税率 se = je * sl
* hjse= se1 + se2 + ... + seN
* hjje= je1 + je2 + ... + jeN
* 价税合计 =合计金额+合计税额 jshj = hjje + hjse
*
*/
/**
*
* 不含税计算示例1 无价格 无数量
* @link https://fa-piao.com/fapiao.html?action=data2&source=github
*/
noTaxExample1();
Console.WriteLine("---------------------------------------------");
/**
*
* 不含税计算示例2 有价格 有数量
* 一阶水费 1吨，单价2元/吨，税率0.03
* 二阶水费 1吨，单价3元/吨，税率0.01
* @link https://fa-piao.com/fapiao.html?action=data4&source=github
*
*/
noTaxExample2();
Console.WriteLine("---------------------------------------------");
/**
* 不含税计算示例3 有价格自动算数量 购买猪肉1000元,16.8元/斤
* @link https://fa-piao.com/fapiao.html?action=data6&source=github
*
*/
noTaxExample3();
Console.WriteLine("---------------------------------------------");
/**
* 不含税计算示例4 有数量自动算价格 购买接口服务1000元7次
*
* @link https://fa-piao.com/fapiao.html?action=data8&source=github
*
*/
noTaxExample4();
Console.WriteLine("---------------------------------------------");
/**
* 免税计算示例
* 金额 = 单价 * 数量 je = dj * spsl
* 税额 = 0
* hjse = se1 + se2 + ... + seN
* jshj = je1 + je2 + ... + jeN
* 价税合计 =合计金额+合计税额 jshj = hjje + hjse
* @link https://fa-piao.com/fapiao.html?action=data9&source=github
*/
taxFreeExample();
}
/**
* 含税计算示例1 - 无价格无数量
*/
public static void example1()
{
int hsbz = 1;
bool isIncludeTax = hsbz == 1;
decimal amount = 200m;
decimal sl = 0.01m;
decimal se = calculateTax(amount, sl, isIncludeTax, 2);
InvoiceData data = new InvoiceData();
data.fyxm = new List<InvoiceItem>();
InvoiceItem item = new InvoiceItem();
item.fphxz = 0;
item.hsbz = hsbz;
item.spmc = "*软件维护服务*接口服务费";
item.spbm = "3040201030000000000";
item.je = amount;
item.sl = sl;
item.se = se;
data.fyxm.Add(item);
calculateTotals(data, isIncludeTax);
Console.WriteLine("含税计算示例1 无价格 无数量: ");
Console.WriteLine(data.toJson());
}
/**
* 含税计算示例2 - 有价格有数量
*/
public static void example2()
{
int hsbz = 1;
bool isIncludeTax = hsbz == 1;
decimal spsl1 = 1m;
decimal dj1 = 2m;
decimal sl1 = 0.03m;
decimal je1 = Round(dj1 * spsl1, 2);
decimal se1 = calculateTax(je1, sl1, isIncludeTax, 2);
decimal spsl2 = 1m;
decimal dj2 = 3m;
decimal sl2 = 0.01m;
decimal je2 = Round(dj2 * spsl2, 2);
decimal se2 = calculateTax(je2, sl2, isIncludeTax, 2);
InvoiceData data = new InvoiceData();
data.fyxm = new List<InvoiceItem>();
InvoiceItem item1 = new InvoiceItem();
item1.fphxz = 0;
item1.hsbz = hsbz;
item1.spmc = "*水冰雪*一阶水费";
item1.spbm = "1100301030000000000";
item1.ggxh = "";
item1.dw = "吨";
item1.dj = dj1;
item1.spsl = spsl1;
item1.je = je1;
item1.sl = sl1;
item1.se = se1;
data.fyxm.Add(item1);
InvoiceItem item2 = new InvoiceItem();
item2.fphxz = 0;
item2.hsbz = hsbz;
item2.spmc = "*水冰雪*二阶水费";
item2.spbm = "1100301030000000000";
item2.ggxh = "";
item2.dw = "吨";
item2.dj = dj2;
item2.spsl = spsl2;
item2.je = je2;
item2.sl = sl2;
item2.se = se2;
data.fyxm.Add(item2);
calculateTotals(data, isIncludeTax);
Console.WriteLine("含税计算示例2 有价格 有数量: ");
Console.WriteLine(data.toJson());
}
/**
* 含税计算示例3 - 有价格自动算数量
*/
public static void example3()
{
int hsbz = 1;
bool isIncludeTax = hsbz == 1;
decimal amount = 1000m;
decimal dj = 16.8m;
decimal sl = 0.01m;
decimal se = calculateTax(amount, sl, isIncludeTax, 2);
InvoiceData data = new InvoiceData();
data.fyxm = new List<InvoiceItem>();
InvoiceItem item = new InvoiceItem();
item.fphxz = 0;
item.hsbz = hsbz;
item.spmc = "*肉类*猪肉";
item.spbm = "1030107010100000000";
item.ggxh = "";
item.dw = "斤";
item.dj = dj;
item.spsl = Divide(amount, dj, 13);
item.je = amount;
item.sl = sl;
item.se = se;
data.fyxm.Add(item);
calculateTotals(data, isIncludeTax);
Console.WriteLine("含税计算示例3 有价格自动算数量 购买猪肉1000元,16.8元/斤: ");
Console.WriteLine(data.toJson());
}
/**
* 含税计算示例4 - 有数量自动算价格
*/
public static void example4()
{
int hsbz = 1;
bool isIncludeTax = hsbz == 1;
decimal amount = 1000m;
decimal spsl = 7m;
decimal sl = 0.01m;
decimal se = calculateTax(amount, sl, isIncludeTax, 2);
InvoiceData data = new InvoiceData();
data.fyxm = new List<InvoiceItem>();
InvoiceItem item = new InvoiceItem();
item.fphxz = 0;
item.hsbz = hsbz;
item.spmc = "*软件维护服务*接口服务费";
item.spbm = "3040201030000000000";
item.ggxh = "";
item.dw = "次";
item.dj = Divide(amount, spsl, 13);
item.spsl = spsl;
item.je = amount;
item.sl = sl;
item.se = se;
data.fyxm.Add(item);
calculateTotals(data, isIncludeTax);
Console.WriteLine("含税计算示例4 有数量自动算价格 购买接口服务1000元7次: ");
Console.WriteLine(data.toJson());
}
/**
* 计算发票数据的合计值
*/
private static void calculateTotals(InvoiceData data, bool isIncludeTax)
{
decimal jshj = 0m;
decimal hjse = 0m;
if (isIncludeTax)
{
foreach (InvoiceItem item in data.fyxm)
{
jshj += item.je;
hjse += item.se;
}
data.jshj = Round(jshj, 2);
data.hjse = Round(hjse, 2);
data.hjje = Round(jshj - hjse, 2);
}
else
{
decimal hjje = 0m;
foreach (InvoiceItem item in data.fyxm)
{
hjje += item.je;
hjse += item.se;
}
data.jshj = Round(hjje + hjse, 2);
data.hjje = Round(hjje, 2);
data.hjse = Round(hjse, 2);
}
}
/**
* 发票数据类
*/
class InvoiceData
{
public decimal hjje = 0m;
public decimal hjse = 0m;
public decimal jshj = 0m;
public List<InvoiceItem> fyxm;
public string toJson()
{
StringBuilder sb = new StringBuilder();
sb.Append("{\n");
sb.Append(" \"hjje\": ").Append(FormatDecimal(hjje)).Append(",\n");
sb.Append(" \"hjse\": ").Append(FormatDecimal(hjse)).Append(",\n");
sb.Append(" \"jshj\": ").Append(FormatDecimal(jshj)).Append(",\n");
sb.Append(" \"fyxm\": [\n");
for (int i = 0; i < fyxm.Count; i++)
{
sb.Append(fyxm[i].toJson());
if (i < fyxm.Count - 1)
{
sb.Append(",\n");
}
else
{
sb.Append("\n");
}
}
sb.Append(" ]\n");
sb.Append("}");
return sb.ToString();
}
}
/**
* 不含税计算示例1 - 无价格无数量
*/
public static void noTaxExample1()
{
int hsbz = 0;
bool isIncludeTax = hsbz == 1;
decimal amount = 200m;
decimal sl = 0.01m;
decimal se = calculateTax(amount, sl, isIncludeTax, 2);
InvoiceData data = new InvoiceData();
data.fyxm = new List<InvoiceItem>();
InvoiceItem item = new InvoiceItem();
item.fphxz = 0;
item.hsbz = hsbz;
item.spmc = "*软件维护服务*接口服务费";
item.spbm = "3040201030000000000";
item.je = amount;
item.sl = sl;
item.se = se;
data.fyxm.Add(item);
calculateTotals(data, isIncludeTax);
Console.WriteLine("不含税计算示例1 无价格 无数量: ");
Console.WriteLine(data.toJson());
}
/**
* 不含税计算示例2 - 有价格有数量
*/
public static void noTaxExample2()
{
int hsbz = 0;
bool isIncludeTax = hsbz == 1;
decimal spsl1 = 1m;
decimal dj1 = 2m;
decimal sl1 = 0.03m;
decimal je1 = Round(dj1 * spsl1, 2);
decimal se1 = calculateTax(je1, sl1, isIncludeTax, 2);
decimal spsl2 = 1m;
decimal dj2 = 3m;
decimal sl2 = 0.01m;
decimal je2 = Round(dj2 * spsl2, 2);
decimal se2 = calculateTax(je2, sl2, isIncludeTax, 2);
InvoiceData data = new InvoiceData();
data.fyxm = new List<InvoiceItem>();
InvoiceItem item1 = new InvoiceItem();
item1.fphxz = 0;
item1.hsbz = hsbz;
item1.spmc = "*水冰雪*一阶水费";
item1.spbm = "1100301030000000000";
item1.ggxh = "";
item1.dw = "吨";
item1.dj = dj1;
item1.spsl = spsl1;
item1.je = je1;
item1.sl = sl1;
item1.se = se1;
data.fyxm.Add(item1);
InvoiceItem item2 = new InvoiceItem();
item2.fphxz = 0;
item2.hsbz = hsbz;
item2.spmc = "*水冰雪*二阶水费";
item2.spbm = "1100301030000000000";
item2.ggxh = "";
item2.dw = "吨";
item2.dj = dj2;
item2.spsl = spsl2;
item2.je = je2;
item2.sl = sl2;
item2.se = se2;
data.fyxm.Add(item2);
calculateTotals(data, isIncludeTax);
Console.WriteLine("不含税计算示例2 有价格 有数量: ");
Console.WriteLine(data.toJson());
}
/**
* 不含税计算示例3 - 有价格自动算数量
*/
public static void noTaxExample3()
{
int hsbz = 0;
bool isIncludeTax = hsbz == 1;
decimal amount = 1000m;
decimal dj = 16.8m;
decimal sl = 0.01m;
decimal se = calculateTax(amount, sl, isIncludeTax, 2);
InvoiceData data = new InvoiceData();
data.fyxm = new List<InvoiceItem>();
InvoiceItem item = new InvoiceItem();
item.fphxz = 0;
item.hsbz = hsbz;
item.spmc = "*肉类*猪肉";
item.spbm = "1030107010100000000";
item.ggxh = "";
item.dw = "斤";
item.dj = dj;
item.spsl = Divide(amount, dj, 13);
item.je = amount;
item.sl = sl;
item.se = se;
data.fyxm.Add(item);
calculateTotals(data, isIncludeTax);
Console.WriteLine("不含税计算示例3 有价格自动算数量 购买猪肉1000元,16.8元/斤: ");
Console.WriteLine(data.toJson());
}
/**
* 不含税计算示例4 - 有数量自动算价格
*/
public static void noTaxExample4()
{
int hsbz = 0;
bool isIncludeTax = hsbz == 1;
decimal amount = 1000m;
decimal spsl = 7m;
decimal sl = 0.01m;
decimal se = calculateTax(amount, sl, isIncludeTax, 2);
InvoiceData data = new InvoiceData();
data.fyxm = new List<InvoiceItem>();
InvoiceItem item = new InvoiceItem();
item.fphxz = 0;
item.hsbz = hsbz;
item.spmc = "*软件维护服务*接口服务费";
item.spbm = "3040201030000000000";
item.ggxh = "";
item.dw = "次";
item.dj = Divide(amount, spsl, 13);
item.spsl = spsl;
item.je = amount;
item.sl = sl;
item.se = se;
data.fyxm.Add(item);
calculateTotals(data, isIncludeTax);
Console.WriteLine("不含税计算示例4 有数量自动算价格 购买接口服务1000元7次: ");
Console.WriteLine(data.toJson());
}
/**
* 免税计算示例
*/
public static void taxFreeExample()
{
int hsbz = 0;
bool isIncludeTax = hsbz == 1;
decimal dj = 32263.98m;
decimal sl = 0m;
decimal se = 0m;
InvoiceData data = new InvoiceData();
data.fyxm = new List<InvoiceItem>();
InvoiceItem item = new InvoiceItem();
item.fphxz = 0;
item.hsbz = hsbz;
item.spmc = "*经纪代理服务*国际货物运输代理服务";
item.spbm = "3040802010200000000";
item.ggxh = "";
item.dw = "次";
item.spsl = 1m;
item.dj = dj;
item.je = dj;
item.sl = sl;
item.se = se;
item.yhzcbs = 1;
item.lslbs = 1;
item.zzstsgl = "免税";
data.fyxm.Add(item);
calculateTotals(data, isIncludeTax);
Console.WriteLine("免税计算示例: ");
Console.WriteLine(data.toJson());
}
/**
* 计算税额
*
* @param amount 金额
* @param taxRate 税率
* @param isIncludeTax 是否含税
* @param newScale 小数位数
* @return BigDecimal
*/
public static decimal calculateTax(decimal amount, decimal taxRate, bool isIncludeTax, int newScale)
{
decimal tax;
if (taxRate <= 0m)
{
tax = 0m;
return tax;
}
if (isIncludeTax)
{
tax = Round(1m / (1m + taxRate), 10)
* taxRate * amount;
tax = Round(tax, newScale);
}
else
{
tax = Round(amount * taxRate, newScale);
}
return tax;
}
/**
* 发票项目类
*/
class InvoiceItem
{
public int fphxz;
public int hsbz;
public string spmc;
public string spbm;
public string ggxh = "";
public string dw = "";
public decimal dj = 0m;
public decimal spsl = 0m;
public decimal je;
public decimal sl;
public decimal se;
public int yhzcbs = 0;
public int lslbs = 0;
public string zzstsgl = "";
public string toJson()
{
StringBuilder sb = new StringBuilder();
sb.Append(" {\n");
sb.Append(" \"fphxz\": ").Append(fphxz).Append(",\n");
sb.Append(" \"hsbz\": ").Append(hsbz).Append(",\n");
sb.Append(" \"spmc\": \"").Append(spmc).Append("\",\n");
sb.Append(" \"spbm\": \"").Append(spbm).Append("\",\n");
sb.Append(" \"ggxh\": \"").Append(ggxh).Append("\",\n");
sb.Append(" \"dw\": \"").Append(dw).Append("\",\n");
sb.Append(" \"dj\": ").Append(FormatDecimal(dj)).Append(",\n");
sb.Append(" \"spsl\": ").Append(FormatDecimal(spsl)).Append(",\n");
sb.Append(" \"je\": ").Append(FormatDecimal(je)).Append(",\n");
sb.Append(" \"sl\": ").Append(FormatDecimal(sl)).Append(",\n");
sb.Append(" \"se\": ").Append(FormatDecimal(se)).Append(",\n");
sb.Append(" \"yhzcbs\": ").Append(yhzcbs).Append(",\n");
sb.Append(" \"lslbs\": ").Append(lslbs).Append(",\n");
sb.Append(" \"zzstsgl\": \"").Append(zzstsgl).Append("\"\n");
sb.Append(" }");
return sb.ToString();
}
}
private static decimal Round(decimal value, int scale)
{
return Math.Round(value, scale, MidpointRounding.AwayFromZero);
}
private static decimal Divide(decimal dividend, decimal divisor, int scale)
{
return Round(dividend / divisor, scale);
}
private static string FormatDecimal(decimal value)
{
return value.ToString(CultureInfo.InvariantCulture);
}
}
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