问如何在C++中使用带有“do while”循环的计数器？

EN

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

int main()
{
    int storeNum = 1;
    int payRollAmount = 0;
    int totalPayroll = 0;

    do
    {
        cout << "Store " << storeNum << ":" << endl;

        while (payRollAmount <= -1)
        {
            cout << "Enter Store's Payroll Amount (-1 to exit): ";
            cin >> payRollAmount;

            totalPayroll += payRollAmount;
        }

        storeNum++;
    } while (storeNum <= 3);

    cout << "The Total Payroll is: " << totalPayroll << endl;

    system("pause");
    return 0;
}

The code should take in an unknown amount of "payrolls," allow you to exit using -1, and then continue on to the next stores payrolls. It should do this 3 times, and then display the total amount (all numbers entered added together.