获取网页docum对象

最新推荐文章于 2025-05-24 15:24:14 发布

m0_57970861

最新推荐文章于 2025-05-24 15:24:14 发布

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文章标签： javascript 前端 html

本文链接：https://blog.youkuaiyun.com/m0_57970861/article/details/127675034

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>气体源流是不对的</title>
</head>
<body>
<div class="over-layer">
  <h3 class="title">获取文档信息</h3>
  <p class="description">获取页面标题：<button οnclick="getTitle();">试一下</button> </p>
  <p class="description">获取当前域名：<button οnclick="getDomain();">试一下</button> </p>
  <p class="description">获取URL：<button οnclick="getReferrers();">试一下</button> </p>
</div>
<script>

  function  getTitle(){
    var originalTitle=document.title;

    alert(originalTitle);
  }
  function  getDomain(){
    var domain=document.domain;
    alert(domain);}
    function getReferrers(){
      var referrer=document.URL;

      alert(referrer);
    }
</script>
<div class="over-layer">
  <h3 class="title">查找文档信息</h3>
  <p class="description">getElementById()：<button οnclick="getId();">试一下</button> </p>
  <div id="myDiv">张志顺123456</div>
  <p class="description">getElementByTagName()：<button οnclick="getTag();">试一下</button> </p>
  <h1>表情电话费电费缴纳的积分</h1>
</div>
<script>
  function  getId(){
    var id_content='id:<div id="myDiv">张志顺123456</div>';
    alert(id_content);
    var div=document.getElementById("myDiv");
    alert(div.innerHTML);
  }
  function  getTag(){
    var tag_content='tag:<h1>表情电话费电费缴纳的积分</h1>';
    alert(tag_content);
  var h1=document.getElementsByTagName("h1");
  alert(h1[0].innerHTML);
  }
</script>
</body>
</html>