版本

document.addEventListener("DOMContentLoaded", function() { var items = Array.from(document.querySelectorAll(".showcase-item")); var container = document.querySelector("#logo-container"); var itemCount = items.length; var priorityItems = 8; function getRandomIndex(max) { return Math.floor(Math.random() * max); } function showRandomItem() { var showPriority = Math.random() < 0.6; // 优先项目有 60% 的机会 var selectedIndex; if (showPriority) { selectedIndex = getRandomIndex(priorityItems); } else { selectedIndex = getRandomIndex(itemCount - priorityItems) + priorityItems; } var selectedItem = items[selectedIndex]; // 从 DOM 中删除所有项目 items.forEach(function(item) { item.remove(); }); // 将选定的项目附加到容器 container.appendChild(selectedItem); } showRandomItem(); });