帮我写一个可以录入试题的题库控制台应用代码

好的，以下是可以录入试题的题库控制台应用代码：

#include <iostream>
#include <string>
#include <vector>

using namespace std;

class Question {
public:
    string question_text;
    vector<string> options;
    int correct_answer_index;
};

class QuestionBank {
public:
    vector<Question> questions;

    void add_question(Question q) {
        questions.push_back(q);
    }

    void print_question(int index) {
        Question q = questions[index];
        cout << "Question " << index+1 << ": " << q.question_text << endl;
        for (int i = 0; i < q.options.size(); i++) {
            cout << i+1 << ") " << q.options[i] << endl;
        }
    }

    int get_num_questions() {
        return questions.size();
    }
};

int main() {
    QuestionBank q_bank;

    while (true) {
        cout << "Enter a question (or 'q' to quit): ";
        string input;
        getline(cin, input);
        if (input == "q") {
            break;
        }

        Question q;
        q.question_text = input;
        for (int i = 0; i < 4; i++) {
            cout << "Enter option " << i+1 << ": ";
            getline(cin, input);
            q.options.push_back(input);
        }
        cout << "Enter the index of the correct answer (1-4): ";
        getline(cin, input);
        q.correct_answer_index = stoi(input) - 1;

        q_bank.add_question(q);
    }

    cout << endl << "Question Bank:" << endl;
    for (int i = 0; i < q_bank.get_num_questions(); i++) {
        q_bank.print_question(i);
        cout << endl;
    }

    return 0;
}

这个代码可以让用户逐个输入问题、选项和正确答案，然后将其保存在一个题库中。用户可以随时退出输入并查看整个题库。