这只是一个示例, 起到抛砖引玉的作用

javascript: (function () {
    const websites = [
        { name: 'baidu', url: 'https://www.baidu.com' },
        { name: 'google', url: 'https://www.google.com' },
        // 添加更多网站链接
    ];

    const popupContainer = document.createElement('div');
    popupContainer.style.position = 'fixed';
    popupContainer.style.top = '50%';
    popupContainer.style.left = '50%';
    popupContainer.style.transform = 'translate(-50%, -50%)';
    popupContainer.style.background = '#fff';
    popupContainer.style.padding = '20px';
    popupContainer.style.border = '2px solid #ccc';
    popupContainer.style.borderRadius = '8px';
    popupContainer.style.zIndex = '9999';

    const ulElement = document.createElement('ul');
    ulElement.style.listStyleType = 'none';
    ulElement.style.paddingLeft = '0';

    websites.forEach((site, index) => {
        const liElement = document.createElement('li');
        const checkbox = document.createElement('input');
        checkbox.type = 'checkbox';
        checkbox.id = `site_${index}`;
        checkbox.value = site.url;
        const label = document.createElement('label');
        label.setAttribute('for', `site_${index}`);
        label.textContent = site.name;
        liElement.appendChild(checkbox);
        liElement.appendChild(label);
        ulElement.appendChild(liElement);
    });

    const buttonElement = document.createElement('button');
    buttonElement.textContent = 'Open Selected';
    buttonElement.id = 'openSelectedBtn';

    popupContainer.appendChild(ulElement);
    popupContainer.appendChild(buttonElement);

    document.body.appendChild(popupContainer);

    buttonElement.addEventListener('click', function () {
        const checkboxes = document.querySelectorAll(
            'input[type="checkbox"]:checked'
        );
        checkboxes.forEach((checkbox) => {
            const url = checkbox.value;
            window.open(url, '_blank');
        });
        document.body.removeChild(popupContainer);
    });
})();