求大佬改进ai

#include <iostream>
#include <string>
#include <map>
#include <sstream>
#include <stack>
#include <regex>

std::map<std::string, std::string> responses = {
    {"你好", "你好！"},
    {"再见", "再见！"},
    {"谢谢", "不客气！"},
    {"你叫什么名字", "我是一个聊天机器人。"}
};

std::map<std::string, std::string> feedKnowledge;

std::string getResponse(const std::string& input) {
    auto it = responses.find(input);
    if (it != responses.end()) {
        return it->second;
    } else {
        return "对不起，我不明白您的问题。";
    }
}

double calculate(const std::string& input) {
    std::stack<double> values;
    std::stack<char> operators;

    std::regex re("([-+]?[0-9]*\\.?[0-9]+|[-+])");
    std::sregex_iterator it(input.begin(), input.end(), re);
    std::sregex_iterator end;

    while (it != end) {
        std::string token = it->str();
        if (token == "+" || token == "-" || token == "*" || token == "/") {
            while (!operators.empty() && operators.top() != '(') {
                double value2 = values.top();
                values.pop();
                double value1 = values.top();
                values.pop();
                char op = operators.top();
                operators.pop();

                if (op == '+') {
                    values.push(value1 + value2);
                } else if (op == '-') {
                    values.push(value1 - value2);
                } else if (op == '*') {
                    values.push(value1 * value2);
                } else if (op == '/') {
                    values.push(value1 / value2);
                }
            }
            operators.push(token[0]);
        } else if (token == "(") {
            operators.push(token[0]);
        } else if (token == ")") {
            while (!operators.empty() && operators.top() != '(') {
                double value2 = values.top();
                values.pop();
                double value1 = values.top();
                values.pop();
                char op = operators.top();
                operators.pop();

                if (op == '+') {
                    values.push(value1 + value2);
                } else if (op == '-') {
                    values.push(value1 - value2);
                } else if (op == '*') {
                    values.push(value1 * value2);
                } else if (op == '/') {
                    values.push(value1 / value2);
                }
            }
            if (!operators.empty() && operators.top() == '(') {
                operators.pop();
            }
        } else {
            values.push(std::stod(token));
        }
        ++it;
    }

    while (!operators.empty()) {
        double value2 = values.top();
        values.pop();
        double value1 = values.top();
        values.pop();
        char op = operators.top();
        operators.pop();

        if (op == '+') {
            values.push(value1 + value2);
        } else if (op == '-') {
            values.push(value1 - value2);
        } else if (op == '*') {
            values.push(value1 * value2);
        } else if (op == '/') {
            values.push(value1 / value2);
        }
    }

    return values.top();
}

void feedKnowledge() {
    std::string key, value;
    std::cout << "请输入知识关键词：";
    std::cin >> key;
    std::cin.ignore();
    std::cout << "请输入知识内容：";
    std::getline(std::cin, value);
    feedKnowledge[key] = value;
}

int main() {
    std::string input;
    std::cout << "请输入您的问题：";
    while (std::getline(std::cin, input)) {
        if (input == "F10") {
            feedKnowledge();
        } else {
            size_t pos = input.find("=");
            if (pos != std::string::npos) {
                std::string expression = input.substr(0, pos);
                double result = calculate(expression);
                feedKnowledge[expression] = std::to_string(result);
                std::cout << "机器人：" << result << std::endl;
            } else {
                std::string response = getResponse(input);
                std::cout << "机器人：" << response << std::endl;
            }
        }
        std::cout << "请输入您的问题：";
    }
    return 0;
}