也可以直接去我相册站体验下：https://photo.ouxiaopi.com JS部分 document.addEventListener("DOMContentLoaded", function() { const toggleButton = document.getElementById('toggleMode'); const body = document.body; toggleButton.addEventListener('click', function() { if (body.classList.contains('day-mode')) { body.classList.remove('day-mode'); body.classList.add('night-mode'); // 切换图标 this.querySelector('.iconfo .....