c++ - 如何将 for 循环创建的可变数量的整数相加？

Question

好吧，我不太确定上面的问题是否真的说明了我的问题，但我花了几个小时寻找答案。基本上，我正在创建一个掷骰子程序，它会要求用户输入掷骰子的数量、骰子的面数，然后显示结果。但是，我还希望能够添加所有卷的总数。不过，我不确定该怎么做。这是我拥有的:

#include <iostream>
#include <ctime>
#include <cstdlib>
using namespace std;
int main()
{
    int roll, side, dice, i;
    srand(time(0));
    cout << "-------------------" << endl;
    cout << "      D I C E      " << endl;
    cout << "    R O L L E R    " << endl;
    cout << "*******v1.00*******" << endl;
    cout << endl;
    do
    {
        cout << "Enter the number of dice you wish to roll.   " << endl;
        cin >> dice;
        cout << endl;
        cout << "Enter the number of sides on the dice.       " << endl;
        cin >> side;
        cout << endl;
            for (i = 0; i < dice; ++i) //Increments for the number of dice rolled.
            {
                roll = rand() % side + 1; //Allows for variable sides based on input.
                cout << endl;
                cout << "[" << roll << "]" << endl; //Rolls are displayed in a
                cout << endl;                       //column in brackets.
            }
    } while (true);
}

Answer 1

定义 sum 变量为 0 并继续用 roll 相加并在屏幕上显示如下。

int rollSum = 0;
cout << endl;
do
{
    cout << "Enter the number of dice you wish to roll.   " << endl;
    cin >> dice;
    cout << endl;
    cout << "Enter the number of sides on the dice.       " << endl;
    cin >> side;
    cout << endl;
        for (i = 0; i < dice; ++i) //Increments for the number of dice rolled.
        {
            roll = rand() % side + 1; //Allows for variable sides based on input.
            rollSum += roll;
            cout << endl;
            cout << "[" << roll << "]" << rollSum << endl; //Rolls are displayed in a
            cout << endl;                       //column in brackets.
        }
} while (true);