use*_*731 1 html javascript html5 webpage loops
我正在尝试删除除拳头课程以外的所有课程。
的HTML:
<div class="note">1</div>
<div class="note">1</div>
<div class="note">1</div>
<div class="note">1</div>
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Js:
for (var item of document.querySelectorAll("div.note(not:first-of-type"))) {
item.classList.remove('note');
}
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用途:not(:first-of-type):
for (var item of document.querySelectorAll("div.note:not(:first-of-type)")) {
item.classList.remove('note');
}Run Code Online (Sandbox Code Playgroud)
.note {
color: yellow;
}Run Code Online (Sandbox Code Playgroud)
<div class="note">1</div>
<div class="note">2</div>
<div class="note">3</div>
<div class="note">4</div>Run Code Online (Sandbox Code Playgroud)