x
1
<p class="a b c"></p>2
<script>3
var para = document.querySelector("p");4
var classes = para.classList;5
para.classList.add("d");6
para.textContent = '段落的 classList 是 "' + classes + '"';7
</script>8
<p class="a b c"></p><script>var para = document.querySelector("p");var classes = para.classList;para.classList.add("d");para.textContent = '段落的 classList 是 "' + classes + '"';</script>