#include<iostream>
using namespace std;
int main()
{
    double paid,income,dollar[]={100,50,10,5,2,1,0.5,0.2,0.1};
    int i,change;
    

    cout<<"客户购物金额：";
    cin>>paid;
    cout<<"实收：";
    cin>>income;

    paid=income-paid;
    cout<<"应找客户金额为："<<paid<<"元\n";
    cout<<'\n';

    for(i=0;i<9;i++)
    {
        change=paid/dollar[i];
        cout<<dollar[i]<<"元="<<change<<"张\n";
        cout<<'\n';

           if(paid>=dollar[i])
        paid=paid-change*dollar[i];
           
    }
    return 0;
}

请高手帮我看看这段代码，在计算的时候代码计算错误，我想了好久也想不处来，请教高手，谢谢啦！