Question

我只是想知道如何才能做到这一点。以下是我想要的代码片段：

/**< CASPOR's question script */
if (input == "N")
{
    cout << "Ok, " << name << " would you like to ask me a simple question?\n";
    cin >> input;
    {
        if (input == "Y")
        {
            while ("Y")
            {
                cout << "Ask away!\n";
                cin.ignore();
                getline(cin, input);
                {
                    if (input == "Who are you?")
                    {
                        cout << "I am CASPOR, or a C++ Automated Speech Program Of Recognition.\n";
                    }

                    if (input == "What is your purpose?")
                    {
                        cout << "My purpose is to entertain and amaze. Almost like a boredom breaker.\n";
                    }

                    if (input == "What can you do?")
                    {
                        cout << "I can do anything the developers program me to do!";
                    }
                    cout << "Would you like to ask another question?\n";
                    cin >> input;
                    {
                        if (input == "Y")
                            continue;
                    }
                }
            }
        }
    }
}

在"CASPOR"回答你的问题的地方，我怎么能有机会每次都说些不同的东西？

Answer 1

您可以将答案存储在容器中（通常为std::vector<std::string>>）并使用std::shuffle将其随机化。

然后只需在矢量中选择第一个答案。

示例：

#include <vector> #include <string> #include <algorithm> #include <iostream> #include <random> #include <chrono> int main() { // Initialize the seed unsigned seed = std::chrono::system_clock::now().time_since_epoch().count(); // Store the answers std::vector<std::string> answers = { "Answer1" , "Answer2", "Answer3", "Answer4" }; for(std::size_t n = 0 ; n <10 ; ++n) { // Randomize the vector std::shuffle(std::begin(answers), std::end(answers), std::default_random_engine(seed)); std::cout << answers[0] << '\n'; } }

Live demo

备注：

您的if应为if ... else if ... else if ...

您的while ("Y")毫无意义，只需while(true)

Answer 2

你会有类似的东西：

std::string possibleAnswers[] = {"Answer 1", "Answer 2", "Answer 3", "etc."};

然后可能做类似的事情：

std::cout << possibleAnswers[rand() % numPossibleAnswers] << "\n";

这是基本的东西，但是如果你想要更复杂的东西，你可以设置一个系统，从.csv加载答案，其中每一行都有可能回答不同的问题。

Answer 3

这是一个在预定义字符串向量上使用<random>的小例子：

default_random_engine my_random;            // random generator  but not yet seeded -> so always the same numbers
my_random.seed(time(NULL));                 // intiialisze with at least a little bit of randomness

vector<string> sentences = { "Hello", "Hi !", "Happy to see you !", "etc..." };
uniform_int_distribution<int> sentences_dist(0, sentences.size()-1);    // uniform distribution between 0 and size of vector (equal proba to have any of it)

for (int i = 0; i < 15; i++)
    cout << sentences[sentences_dist(my_random)] << endl;

Answer 4

你可以创建一个问题数据库并编写一个函数，在它被唤起时它会返回一个随机问题，如下例所示：

#include <iostream>
#include <random>
#include <array>
#include <string>

std::array<std::string, 3> questions {"Who are you?", "What is your purpose?", "What can you do?"};

std::string random_question() {
  std::random_device rd;
  std::mt19937 gen(rd());
  std::uniform_int_distribution<> dis(0, questions.size() - 1);

  return questions[dis(gen)];
}

int main() {
  for(int n = 0; n < 10; ++n) std::cout << random_question() << std::endl;
}

LIVE DEMO

如何在c ++中创建单词/句子输出的随机机会

4 个答案: