這是我遇到的問題的簡單表示。當您單擊按鈕時，所有黑色 div 都應變?yōu)楹谏?。但是?css 樣式的大的沒有。有任何想法嗎？多謝。var v;function link() { v = document.querySelectorAll('[style*="background:black;"]'); v.forEach(function(value) { value.style.backgroundColor = "red"; });}.box1 { background-color: black; height: 200px; width: 200px; border: 2px solid green; font-size: 25px; color: white;}<html><head> <link rel="stylesheet" href="filter.css" /></head><body> <div style="background:black; height:100px; width:100px;" id="div1"></div> <div style="background:blue; height:100px; width:100px;"></div> <div style="background:black; height:100px; width:100px;"></div> <div class="box1"> css styled box</div> <button onclick="link()" style="height:20px; width:50px;">Click </button></body></html>
querySelectorAll選擇基于css
慕運維8079593
2021-12-23 10:17:52
