c++ - 如何在 C++ 中创建单词/句子输出的随机机会

Question

我只是想知道我怎么能做到这一点。这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” 回答您问题的地方，我怎样才能包含他每次都会说不同话的机会？

Answer 1

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

然后只需选择 vector 中的第一个答案。

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

注意事项:

• 你的 if应该是 if ... else if ... else if ...
• 你的 while ("Y")毫无意义，就做while(true)