????：<!DOCTYPE html><html><head> <meta charset="UTF-8"> <title>使用css選擇器來(lái)獲取元素</title></head><body><ul id=&quo
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>使用css選擇器來(lái)獲取元素</title>
</head>
<body>
<ul id="ul">
<li>列表項(xiàng)01</li>
<li>列表項(xiàng)02</li>
<li>列表項(xiàng)03</li>
<li>列表項(xiàng)04</li>
<li class="coral large">列表項(xiàng)05</li>
</ul>
<script>
let lists = document.querySelectorAll('li');
console.log(lists);
lists[0].style.backgroundColor = 'coral';
lists.item(1).style.backgroundColor = 'lightblue';
//該方法還可以在元素上調(diào)用,這也根據(jù)標(biāo)簽和class類名獲取元素是一樣的
let ul = document.querySelector('#ul');
console.log(ul);
let li = ul.querySelectorAll('.green');
for (let i = 0; i < li.length; i++) {
li[i].style.backgroundColor = 'green';
}
</script>
</body>
</html>
?? ???：查無(wú)此人?? ??：2019-04-27 17:36:40
???? ??：完成的不錯(cuò)。js比較復(fù)雜，要耐心學(xué)習(xí)。繼續(xù)加油