c++上机作业

#include<iostream>
using namespace std;
int main()
{
double s,t=0,n=0;

cout<<"请输入您本月的收入总额（元）：";
cin>>s;
if(s>=3500&&s<=5000)
{t=(s-3500)*0.03;
n=s-t;}
else if(s>5000&&s<=8000)
{t=(s-3500)*0.1-105;
n=s-t;}
else if(s>8000&&s<=12500)
{t=(s-3500)*0.2-555;
n=s-t;}
else if(s>12500&&s<=38500)
{t=(s-3500)*0.25-1005;
n=s-t;}
else if(s>38500&&s<=58500)
{t=(s-3500)*0.3-2755;
n=s-t;}
else if(s>58500&&s<=83500)
{t=(s-3500)*0.35-5505;
n=s-t;}
else if(s>83500)
{t=(s-3500)*0.45-13505;
n=s-t;}
else
{t=0;
n=s-t;}
cout<<"您本月应缴个人所和税 "<<t<<" 元，税后收入是 "<<n<<" 元。\n";
<img src="http://img.blog.csdn.net/20160412152747173?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />}