const darkBtn = document.getElementById('切换按钮ID');
darkBtn.addEventListener('click', () => {
    const head = document.getElementsByTagName('head')[0];
    const darkStyle = document.getElementById('dark-style');
    if (darkStyle) {
        head.removeChild(darkStyle);
        document.cookie = 'colorScheme=light; path=/; expires=0';
    } else {
        const link = document.createElement('link');
        link.id = 'dark-style';
        link.rel = 'stylesheet';
        link.href = "深色主题css文件路径(dark.css文件路径)";
        head.appendChild(link);
        document.cookie = 'colorScheme=dark; path=/; expires=0';
    }
});
function isDarkMode() {
    const cookies = document.cookie.split(';');
    for (let i = 0; i < cookies.length; i++) {
        let cookie = cookies[i].trim();
        if (cookie.startsWith("colorScheme=")) {
            const value = cookie.substring("colorScheme=".length);
            return value === "dark";
        }
    }
    return false;
}
if (isDarkMode()) {
    darkBtn.click();
}

[...document.querySelectorAll(".darkreader")]
  .flatMap(stylesheet => [...stylesheet.sheet.cssRules])
  .map(rule => rule.cssText)
  .filter(Boolean)
  .join("  ")

想起来就更新一点 写在这里就是为了可以一直修改添加 1.https://linux.do/t/topic/246597https://linux.do/t/topic/293855 应该是不允许写这个了 那么白嫖指南就消失了 2.写给小白的 如何使用API 3.DeepLX已切换至 LINUX DO Connect 认证 （这个是NEO写的 但我觉得很重要 就加进来了） 4.酒…