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最新推荐文章于 2024-08-22 03:38:56 发布

吴默涵1

最新推荐文章于 2024-08-22 03:38:56 发布

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本文链接：https://blog.youkuaiyun.com/wu964521/article/details/101565268

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<!DOCTYPE html>
bar<html>
 <head>
  <meta charset="utf-8">
  <title></title>
 </head>
 <body>
  <div id="box">box</div>
  <div class="bar">bar</div>
  <div name="main">main</div>
  <script>
   console.log(document.getElementById('box'));
   console.log(document.getElementsByTagName('div'))
   console.log(document.getElementsByClassName('bar'));
   console.log(document.getElementsByName('mian'));
   var box =document.getElementById('box');
   var divs =document.getElementsByTagName('div');
   console.log(divs[0] === box);
   console.log(document.querySelector('div'));
   console.log(document.querySelector('#box'));
   console.log(document.querySelector('.bar'));
   console.log(document.querySelector('div[name]'));
   console.log(document.querySelector('div.bar'));
   console.log(document.querySelector('div#box'));
  </script>
 </body>
</html>