第3周项目1 个人所得税计算器

#include <iostream>
#include<cmath>
using namespace std;

int main()
{
double dSalary,dTax=0,dNetIncome=0;
int t,m;
cout << "请您输入本月的收入总额（元）: ";
cin>>dSalary;
t=dSalary-3500;
if(t>0)
{

m=(t<1500)+(t<4500)+(t<9000)+(t<35000)+(t<55000)+(t<8000);
switch(m)
{
case 6:
dTax=t*0.03;
break;
case 5:
dTax=t*0.1-105;
break;
case 4:
dTax=t*0.2-555;
break;
case 3:
dTax=t*0.25-1005;
break;
case 2:
dTax=t*0.30-2755;
case 1:
dTax=t*0.35-5505;
default :
dTax=t*0.45-13505;
}
dNetIncome=dSalary-dTax;
cout<<"您本月应交个人所得税"<<dTax<<"元，税后收入是 "<<dNetIncome<<"元。\n";
cout<<"依法纳税，共享繁荣。谢谢使用!\n";
}
return 0;
}