工资纳税系统

工资纳税系统

个人所得税每月交一次，底线是1600元/月，也就是超过了1600元的月薪才开始计收个人所得税。个人所得税税率表一（工资、薪金所得适用）

级数----------全月应纳税所得额----------税率（％）

1--------------不超过500元的--------------------------5

2----------超过500元至2000元的部分------------10

3----------超过2000元至5000元的部分----------15

4----------超过5000元至20000元的部分---------20

5----------超过20000元至40000元的部分-------25

6----------超过40000元至60000元的部分-------30

7----------超过60000元至80000元的部分-------35

8----------超过80000元至100000元的部分------40

9----------超过100000元的部分---------------------45

表中的应纳税所得额是指以每月收入额减除1600元后的余额。

例如：计算为：2500-1600=900

应纳个人所得税额=500×5%+400×10% =65

再比如：我们用一个大额工资计算，25000元

应纳税所得额=25000-1600=23400

应纳个人所得税税额=500×5%+1500×10%+3000×15%+15000×20%+3400×25%=4475

要求：输入工资计算出纳税金额。

#include

#include

#include

#include

#include

struct Employee

{

bool delTag;

char num[9];

char name[11];

float basicSalary;

double nashui;

};

class Salary

{

private:

//数据成员

fstream file;

public:

Salary(){};

//virtual~Salary(){file.close();}

double nashui2(double n); //计算纳税额

int Run();

void jlData(); //初始化数据

void AddData(); //增加数据

void UpdateData(); //更新数据

void SearchData(); //查询数据

void DeleteData(); //删除数据

void Pack(); //显示文件数据

};

void Salary::jlData() //初始化数据函数

{

fstream file("salary.dat",ios::in|ios::out|ios::binary);

if(file.fail()) throw("打开文件失败！");

file.close();system("pause");

}

void Salary::AddData() //增加数据

{

char tag;

Employee e;

e.delTag=false;

file.open("salary.dat",ios::in|ios::out|ios::binary);

do

{

cout<<"输入编号:";

cin>>e.num;

cout<<"输入姓名:";

cin>>https://www.360docs.net/doc/c58198612.html,;

cout<<"输入基本工资:";

cin>>e.basicSalary;

e.nashui=nashui2(e.basicSalary);

file.seekg(0,ios::end);

file.write((char*)&e,sizeof(Employee));

cout<<"继续添加吗(y/n):";

cin>>tag;

}while(tag=='y');

cout<<"******************************************"<< endl; file="file" void="void" salary::updatedata="salary::updatedata" employee="employee" e="e" char="char" n="n" cout="cout"

cin="cin">>n;

file.open("salary.dat",ios::in|ios::out|ios::binary);

file.seekg(0);

file.read((char*)&e,sizeof(Employee));

while(!file.eof())

if(strcmp(e.num,n)==0&&!e.delTag)break;

file.read((char*)&e,sizeof(Employee));

}

if(!file.eof())

{

cout<<"员工编号"<<e.num<>e.num;

cout<<"输入姓名:";

cin>>https://www.360docs.net/doc/c58198612.html,;

cout<<"输入基本工资:";

cout<

int="int" i="1;" char="char" n="n" cout="cout"

cin="cin">>n;

file.open("salary.dat",ios::in|ios::out|ios::binary);

file.seekg(0);

file.read((char*)&e,sizeof(Employee));

while(!file.eof())

{

if(strcmp(e.num,n)==0&&!e.delTag)

{cout<<"员工编号"<<e.num<

if="if" i="=1)" cout="cout" cout="cout" file="file" double="double" salary::nashui2="salary::nashui2" n="n" double="double" x="x"

double="double" a="n-1600;" if="0){" x="0;" else="else"

if="if">0&&a<=500){

x=a*0.05;

}else if(a>500&&a<=2000){

x=500*0.05+(a-500)*0.1;

}else if(a>2000&&a<=5000){

x=500*0.05+150+(a-2000)*0.15;

}else if(a>5000&&a<=20000){

x=500*0.05+150+450+(a-5000)*0.2;

}else if(a>20000&&a<=40000){

x=500*0.05+150+450+3000+(a-20000)*0.25;

}else if(a>40000&&a<=60000){

x=500*0.05+150+450+3000+5000+(a-40000)*0.3;

}else if(a>60000&&a<=80000){

x=500*0.05+150+450+3000+5000+6000+(a-60000)*0.35;

}else if(a>80000&&a<=100000){

x=500*0.05+150+450+3000+5000+6000+7000+(a-80000)*0.4;

}else{

x=500*0.05+150+450+3000+5000+6000+7000+8000+(a-100000)*0.45;

}

cout<<"***********************************************" <

salary::deletedata="salary::deletedata" employee="employee" e="e" char="char" n="n" cout="cout" cin="cin">>n;

file.open("salary.dat",ios::in|ios::out|ios::binary);

file.seekg(0);

file.read((char*)&e,sizeof(Employee));

while(!file.eof())

{

if(strcmp(e.num,n)==0&&!e.delTag) break;

file.read((char*)&e,sizeof(Employee));

}

if(!file.eof())

{

cout<<"被删除记录为:"<

cout="cout" cout="cout" cout="cout" cout="cout" cout="cout" e="true;" file="file" file="file" cout="cout" else="else" cout="cout" file="file" cout="cout" file="file" void="void" salary::pack="salary::pack" employee="employee" e="e" int="int" i="1;" file="file" file="file"

file="file" while="while" cout="cout" cout="cout" cout="cout"

cout="cout" cout="cout" file="file" cout="cout" file="file" int="int" salary::run="salary::run" int="int" select="select" cout="cout"

endl="endl" cout="cout" endl="endl" cout="cout" endl="endl" cout="cout" endl="endl" cout="cout" endl="endl" cout="cout" endl="endl" cout="cout" endl="endl" cout="cout" endl="endl" cout="cout" endl="endl" cout="cout" cin="cin">>select;

return select;

}

int main()

{

Salary sal;

int select;

while (select = sal.Run())

{

switch(select)

{

case 0:

sal.jlData();

break;

case 1:

sal.AddData();

break;

case 2:

sal.UpdateData();

break;

case 3:

sal.SearchData();

break;

case 4:

sal.DeleteData();

break;

case 5:

sal.Pack();

break;

case 6:

cout <