示例2 查询多个元素
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
<!DOCTYPE html><html> <head> <title>访问元素</title> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <style> .mycolor{ color:#fff; } .steam{ text-decoration: initial; } </style> </head> <body> <ul id="ul"> <li id="a">油条</li> <li id="b" class="steam">包子</li> <li id="c" class="steam">米饺</li> <li id="d"><a>鱼粉</a></li> </ul> <script> // 返回多个元素节点 var els = document.querySelectorAll('li.steam'); els[0].className='mycolor'; </script> </body></html> |