如何通过多个类“联合变量”(sfml)使用pollevent

sf::RenderWindow window(sf::VideoMode(800, 600), "SFML Window");

sf::Event event;

while (window.isOpen()) {
    while (window.pollEvent(event)) {
        // 处理事件
    }
}

while (window.isOpen()) {
    while (window.pollEvent(event)) {
        if (event.type == sf::Event::Closed) {
            window.close();
        }
    }
}

while (window.isOpen()) {
    while (window.pollEvent(event)) {
        if (event.type == sf::Event::Closed) {
            window.close();
        }
        else if (event.type == sf::Event::KeyPressed) {
            // 处理键盘按下事件
        }
        else if (event.type == sf::Event::MouseButtonPressed) {
            // 处理鼠标按下事件
        }
    }
}