我想調用 all divs 因為TUTTIiDIV它已經是一個數組。當我運行此代碼時，控制臺看起來不錯，但代碼無法按預期工作。如何選擇數組的所有元素TUTTIiDIV？document.addEventListener("DOMContentLoaded", function() { var TUTTIiDIV = document.querySelectorAll("div"); document TUTTIiDIV.onclick = function() { coloraicontorni() }}); //END DOMcontentLoadedfunction coloraicontorni() { var TUTTIiDIV = document.querySelectorAll("div"); for (i = 0; i <= TUTTIiDIV.length; i++) { TUTTIiDIV[i].classList.add('contorno'); }};* { box-sizing: border-box;}body { background-color: antiquewhite;}#rosso { width: 25%; height: 150px; background-color: red; display: inline-block;}#blu { width: 25%; height: 150px; background-color: blue; display: inline-block;}#giallo { width: 25%; height: 150px; background-color: yellow; display: inline-block;}.contorno { border: 8px solid black;}<div id="rosso"></div><div id="blu"></div><div id="giallo"></div>
如何使用 querySelectorAll 選擇所有 DIV？
慕工程0101907
2023-10-20 10:26:16
