JavaScript学习之HTML DOM 对象

本是古典何须时尚 2022-05-30 06:54 262阅读 0赞

## HTML DOM 事件 ##

HTML DOM 事件允许Javascript在HTML文档元素中注册不同事件处理程序。

事件通常与函数结合使用，函数不会在事件发生前被执行！(如用户点击按钮)。

**提示：** 在 W3C 2 级 DOM 事件中规范了事件模型。

## HTML DOM 事件 ##

**DOM：** 指明使用的 DOM 属性级别。

## 鼠标事件 ##

<table> 
 <tbody> 
  <tr> 
   <th align="left">属性</th> 
   <th align="left">描述</th> 
   <th align="left">DOM</th> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/jsref-event-onclick.html" rel="nofollow">onclick</a></td> 
   <td>当用户点击某个对象时调用的事件句柄。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-oncontextmenu.html" rel="nofollow">oncontextmenu</a></td> 
   <td>在用户点击鼠标右键打开上下文菜单时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/jsref-event-ondblclick.html" rel="nofollow">ondblclick</a></td> 
   <td>当用户双击某个对象时调用的事件句柄。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/jsref-event-onmousedown.html" rel="nofollow">onmousedown</a></td> 
   <td>鼠标按钮被按下。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onmouseenter.html" rel="nofollow">onmouseenter</a></td> 
   <td>当鼠标指针移动到元素上时触发。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onmouseleave.html" rel="nofollow">onmouseleave</a></td> 
   <td>当鼠标指针移出元素时触发</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onmousemove.html" rel="nofollow">onmousemove</a></td> 
   <td>鼠标被移动。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/jsref-event-onmouseover.html" rel="nofollow">onmouseover</a></td> 
   <td>鼠标移到某元素之上。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/jsref-event-onmouseout.html" rel="nofollow">onmouseout</a></td> 
   <td>鼠标从某元素移开。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/jsref-event-onmouseup.html" rel="nofollow">onmouseup</a></td> 
   <td>鼠标按键被松开。</td> 
   <td>2</td> 
  </tr> 
 </tbody> 
</table>

## 键盘事件 ##

## 框架/对象（Frame/Object）事件 ##

<table> 
 <tbody> 
  <tr> 
   <th align="left">属性</th> 
   <th align="left">描述</th> 
   <th align="left">DOM</th> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onabort.html" rel="nofollow">onabort</a></td> 
   <td>图像的加载被中断。 ( &lt;object&gt;)</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/jsref-event-onbeforeunload.html" rel="nofollow">onbeforeunload</a></td> 
   <td>该事件在即将离开页面（刷新或关闭）时触发</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/jsref-event-onerror.html" rel="nofollow">onerror</a></td> 
   <td>在加载文档或图像时发生错误。 ( &lt;object&gt;,&lt;body&gt;和 &lt;frameset&gt;)</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onhashchange.html" rel="nofollow">onhashchange</a></td> 
   <td>该事件在当前 URL 的锚部分发生修改时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/jsref-event-onload.html" rel="nofollow">onload</a></td> 
   <td>一张页面或一幅图像完成加载。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onpageshow.html" rel="nofollow">onpageshow</a></td> 
   <td>该事件在用户访问页面时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onpagehide.html" rel="nofollow">onpagehide</a></td> 
   <td>该事件在用户离开当前网页跳转到另外一个页面时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/jsref-event-onresize.html" rel="nofollow">onresize</a></td> 
   <td>窗口或框架被重新调整大小。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/jsref-event-onscroll.html" rel="nofollow">onscroll</a></td> 
   <td>当文档被滚动时发生的事件。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/jsref-event-onunload.html" rel="nofollow">onunload</a></td> 
   <td>用户退出页面。 (&lt;body&gt; 和 &lt;frameset&gt;)</td> 
   <td>2</td> 
  </tr> 
 </tbody> 
</table>

## 表单事件 ##

<table> 
 <tbody> 
  <tr> 
   <th style="width:20%;">属性</th> 
   <th>描述</th> 
   <th style="width:6%;">DOM</th> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/jsref-event-onblur.html" rel="nofollow">onblur</a></td> 
   <td>元素失去焦点时触发</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/jsref-event-onchange.html" rel="nofollow">onchange</a></td> 
   <td>该事件在表单元素的内容改变时触发( &lt;input&gt;, &lt;keygen&gt;, &lt;select&gt;, 和 &lt;textarea&gt;)</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/jsref-event-onfocus.html" rel="nofollow">onfocus</a></td> 
   <td>元素获取焦点时触发</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/jsref-event-onfocusin.html" rel="nofollow">onfocusin</a></td> 
   <td>元素即将获取焦点时触发</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/jsref-event-onfocusout.html" rel="nofollow">onfocusout</a></td> 
   <td>元素即将失去焦点时触发</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-oninput.html" rel="nofollow">oninput</a></td> 
   <td>元素获取用户输入时触发</td> 
   <td>3</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onreset.html" rel="nofollow">onreset</a></td> 
   <td>表单重置时触发</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onsearch.html" rel="nofollow">onsearch</a></td> 
   <td>用户向搜索域输入文本时触发 (&lt;input="search"&gt;)</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onselect.html" rel="nofollow">onselect</a></td> 
   <td>用户选取文本时触发 ( &lt;input&gt; 和 &lt;textarea&gt;)</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onsubmit.html" rel="nofollow">onsubmit</a></td> 
   <td>表单提交时触发</td> 
   <td>2</td> 
  </tr> 
 </tbody> 
</table>

## 剪贴板事件 ##

## 打印事件 ##

<table> 
 <tbody> 
  <tr> 
   <th style="width:20%;">属性</th> 
   <th>描述</th> 
   <th style="width:6%;">DOM</th> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onafterprint.html" rel="nofollow">onafterprint</a></td> 
   <td>该事件在页面已经开始打印，或者打印窗口已经关闭时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onbeforeprint.html" rel="nofollow">onbeforeprint</a></td> 
   <td>该事件在页面即将开始打印时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
 </tbody> 
</table>

## 拖动事件 ##

<table> 
 <tbody> 
  <tr> 
   <th style="width:20%;">事件</th> 
   <th>描述</th> 
   <th style="width:6%;">DOM</th> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-ondrag.html" rel="nofollow">ondrag</a></td> 
   <td>该事件在元素正在拖动时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-ondragend.html" rel="nofollow">ondragend</a></td> 
   <td>该事件在用户完成元素的拖动时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-ondragenter.html" rel="nofollow">ondragenter</a></td> 
   <td>该事件在拖动的元素进入放置目标时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-ondragleave.html" rel="nofollow">ondragleave</a></td> 
   <td>该事件在拖动元素离开放置目标时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-ondragover.html" rel="nofollow">ondragover</a></td> 
   <td>该事件在拖动元素在放置目标上时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-ondragstart.html" rel="nofollow">ondragstart</a></td> 
   <td>该事件在用户开始拖动元素时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-ondrop.html" rel="nofollow">ondrop</a></td> 
   <td>该事件在拖动元素放置在目标区域时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
 </tbody> 
</table>

## 多媒体（Media）事件 ##

<table> 
 <tbody> 
  <tr> 
   <th style="width:20%;">事件</th> 
   <th>描述</th> 
   <th style="width:6%;">DOM</th> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onabort-media.html" rel="nofollow">onabort</a></td> 
   <td>事件在视频/音频（audio/video）终止加载时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-oncanplay.html" rel="nofollow">oncanplay</a></td> 
   <td>事件在用户可以开始播放视频/音频（audio/video）时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-oncanplaythrough.html" rel="nofollow">oncanplaythrough</a></td> 
   <td>事件在视频/音频（audio/video）可以正常播放且无需停顿和缓冲时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-ondurationchange.html" rel="nofollow">ondurationchange</a></td> 
   <td>事件在视频/音频（audio/video）的时长发生变化时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td>onemptied</td> 
   <td>当期播放列表为空时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onended.html" rel="nofollow">onended</a></td> 
   <td>事件在视频/音频（audio/video）播放结束时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onerror-media.html" rel="nofollow">onerror</a></td> 
   <td>事件在视频/音频（audio/video）数据加载期间发生错误时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onloadeddata.html" rel="nofollow">onloadeddata</a></td> 
   <td>事件在浏览器加载视频/音频（audio/video）当前帧时触发触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onloadedmetadata.html" rel="nofollow">onloadedmetadata</a></td> 
   <td>事件在指定视频/音频（audio/video）的元数据加载后触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onloadstart.html" rel="nofollow">onloadstart</a></td> 
   <td>事件在浏览器开始寻找指定视频/音频（audio/video）触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onpause.html" rel="nofollow">onpause</a></td> 
   <td>事件在视频/音频（audio/video）暂停时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onplay.html" rel="nofollow">onplay</a></td> 
   <td>事件在视频/音频（audio/video）开始播放时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onplaying.html" rel="nofollow">onplaying</a></td> 
   <td>事件在视频/音频（audio/video）暂停或者在缓冲后准备重新开始播放时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onprogress.html" rel="nofollow">onprogress</a></td> 
   <td>事件在浏览器下载指定的视频/音频（audio/video）时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onratechange.html" rel="nofollow">onratechange</a></td> 
   <td>事件在视频/音频（audio/video）的播放速度发送改变时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onseeked.html" rel="nofollow">onseeked</a></td> 
   <td>事件在用户重新定位视频/音频（audio/video）的播放位置后触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onseeking.html" rel="nofollow">onseeking</a></td> 
   <td>事件在用户开始重新定位视频/音频（audio/video）时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onstalled.html" rel="nofollow">onstalled</a></td> 
   <td>事件在浏览器获取媒体数据，但媒体数据不可用时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onsuspend.html" rel="nofollow">onsuspend</a></td> 
   <td>事件在浏览器读取媒体数据中止时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-ontimeupdate.html" rel="nofollow">ontimeupdate</a></td> 
   <td>事件在当前的播放位置发送改变时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onvolumechange.html" rel="nofollow">onvolumechange</a></td> 
   <td>事件在音量发生改变时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onwaiting.html" rel="nofollow">onwaiting</a></td> 
   <td>事件在视频由于要播放下一帧而需要缓冲时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
 </tbody> 
</table>

## 动画事件 ##

<table> 
 <tbody> 
  <tr> 
   <th style="width:20%;">事件</th> 
   <th>描述</th> 
   <th style="width:6%;">DOM</th> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-animationend.html" rel="nofollow">animationend</a></td> 
   <td>该事件在 CSS 动画结束播放时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-animationiteration.html" rel="nofollow">animationiteration</a></td> 
   <td>该事件在 CSS 动画重复播放时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-animationstart.html" rel="nofollow">animationstart</a></td> 
   <td>该事件在 CSS 动画开始播放时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
 </tbody> 
</table>

## 过渡事件 ##

<table> 
 <tbody> 
  <tr> 
   <th style="width:20%;">事件</th> 
   <th>描述</th> 
   <th style="width:6%;">DOM</th> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-transitionend.html" rel="nofollow">transitionend</a></td> 
   <td>该事件在 CSS 完成过渡后触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
 </tbody> 
</table>

## 其他事件 ##

<table> 
 <tbody> 
  <tr> 
   <th style="width:20%;">事件</th> 
   <th>描述</th> 
   <th style="width:6%;">DOM</th> 
  </tr> 
  <tr> 
   <td>onmessage</td> 
   <td>该事件通过或者从对象(WebSocket, Web Worker, Event Source 或者子 frame 或父窗口)接收到消息时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td>onmousewheel</td> 
   <td><span>已废弃。</span> 使用<a href="https://www.w3cschool.cn/jsref/event-onwheel.html" rel="nofollow">onwheel</a> 事件替代</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-ononline.html" rel="nofollow">ononline</a></td> 
   <td>该事件在浏览器开始在线工作时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onoffline.html" rel="nofollow">onoffline</a></td> 
   <td>该事件在浏览器开始离线工作时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td>onpopstate</td> 
   <td>该事件在窗口的浏览历史（history 对象）发生改变时触发。</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onshow.html" rel="nofollow">onshow</a></td> 
   <td>该事件当 &lt;menu&gt; 元素在上下文菜单显示时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td>onstorage</td> 
   <td>该事件在 Web Storage(HTML 5 Web 存储)更新时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-ontoggle.html" rel="nofollow">ontoggle</a></td> 
   <td>该事件在用户打开或关闭 &lt;details&gt; 元素时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-onwheel.html" rel="nofollow">onwheel</a></td> 
   <td>该事件在鼠标滚轮在元素上下滚动时触发</td> 
   <td>&nbsp;</td> 
  </tr> 
 </tbody> 
</table>

## 事件对象 ##

### 常量 ###

<table> 
 <tbody> 
  <tr> 
   <th align="left">静态变量</th> 
   <th align="left">描述</th> 
   <th align="left">DOM</th> 
  </tr> 
  <tr> 
   <td>CAPTURING-PHASE</td> 
   <td>当前事件阶段为捕获阶段(3)</td> 
   <td>1</td> 
  </tr> 
  <tr> 
   <td>AT-TARGET</td> 
   <td>当前事件是目标阶段,在评估目标事件(1)</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td>BUBBLING-PHASE</td> 
   <td>当前的事件为冒泡阶段 (2)</td> 
   <td>3</td> 
  </tr> 
 </tbody> 
</table>

### 属性 ###

<table> 
 <tbody> 
  <tr> 
   <th align="left">属性</th> 
   <th align="left">描述</th> 
   <th align="left">DOM</th> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-bubbles.html" rel="nofollow">bubbles</a></td> 
   <td>返回布尔值，指示事件是否是起泡事件类型。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-cancelable.html" rel="nofollow">cancelable</a></td> 
   <td>返回布尔值，指示事件是否可拥可取消的默认动作。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-currenttarget.html" rel="nofollow">currentTarget</a></td> 
   <td>返回其事件监听器触发该事件的元素。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td>eventPhase</td> 
   <td>返回事件传播的当前阶段。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-target.html" rel="nofollow">target</a></td> 
   <td>返回触发此事件的元素（事件的目标节点）。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-timestamp.html" rel="nofollow">timeStamp</a></td> 
   <td>返回事件生成的日期和时间。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-type.html" rel="nofollow">type</a></td> 
   <td>返回当前 Event 对象表示的事件的名称。</td> 
   <td>2</td> 
  </tr> 
 </tbody> 
</table>

### 方法 ###

<table> 
 <tbody> 
  <tr> 
   <th align="left">方法</th> 
   <th align="left">描述</th> 
   <th align="left">DOM</th> 
  </tr> 
  <tr> 
   <td>initEvent()</td> 
   <td>初始化新创建的 Event 对象的属性。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td>preventDefault()</td> 
   <td>通知浏览器不要执行与事件关联的默认动作。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td>stopPropagation()</td> 
   <td>不再派发事件。</td> 
   <td>2</td> 
  </tr> 
 </tbody> 
</table>

## 目标事件对象 ##

### 方法 ###

<table> 
 <tbody> 
  <tr> 
   <th align="left">方法</th> 
   <th align="left">描述</th> 
   <th align="left">DOM</th> 
  </tr> 
  <tr> 
   <td>addEventListener()</td> 
   <td>允许在目标事件中注册监听事件(IE8= attachEvent())</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td>dispatchEvent()</td> 
   <td>允许发送事件到监听器上 (IE8 =fireEvent())</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td>removeEventListener()</td> 
   <td>运行一次注册在事件目标上的监听事件(IE8 =detachEvent())</td> 
   <td>2</td> 
  </tr> 
 </tbody> 
</table>

## 事件监听对象 ##

### 方法 ###

<table> 
 <tbody> 
  <tr> 
   <th align="left">方法</th> 
   <th align="left">描述</th> 
   <th align="left">DOM</th> 
  </tr> 
  <tr> 
   <td>handleEvent()</td> 
   <td>把任意对象注册为事件处理程序</td> 
   <td>2</td> 
  </tr> 
 </tbody> 
</table>

## 文档事件对象 ##

### 方法 ###

<table> 
 <tbody> 
  <tr> 
   <th align="left">方法</th> 
   <th align="left">描述</th> 
   <th align="left">DOM</th> 
  </tr> 
  <tr> 
   <td>createEvent()</td> 
   <td>&nbsp;</td> 
   <td>2</td> 
  </tr> 
 </tbody> 
</table>

## 鼠标/键盘事件对象 ##

### 属性 ###

<table> 
 <tbody> 
  <tr> 
   <th align="left">属性</th> 
   <th align="left">描述</th> 
   <th align="left">DOM</th> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-altkey.html" rel="nofollow">altKey</a></td> 
   <td>返回当事件被触发时，"ALT" 是否被按下。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-button.html" rel="nofollow">button</a></td> 
   <td>返回当事件被触发时，哪个鼠标按钮被点击。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-clientx.html" rel="nofollow">clientX</a></td> 
   <td>返回当事件被触发时，鼠标指针的水平坐标。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-clienty.html" rel="nofollow">clientY</a></td> 
   <td>返回当事件被触发时，鼠标指针的垂直坐标。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-ctrlkey.html" rel="nofollow">ctrlKey</a></td> 
   <td>返回当事件被触发时，"CTRL" 键是否被按下。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-key-location.html" rel="nofollow">Location</a></td> 
   <td>返回按键在设备上的位置</td> 
   <td>3</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-key-charcode.html" rel="nofollow">charCode</a></td> 
   <td>返回onkeypress事件触发键值的字母代码。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-key-key.html" rel="nofollow">key</a></td> 
   <td>在按下按键时返回按键的标识符。</td> 
   <td>3</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-key-keycode.html" rel="nofollow">keyCode</a></td> 
   <td>返回onkeypress事件触发的键的值的字符代码，或者 onkeydown 或 onkeyup 事件的键的代码。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-key-which.html" rel="nofollow">which</a></td> 
   <td>返回onkeypress事件触发的键的值的字符代码，或者 onkeydown 或 onkeyup 事件的键的代码。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-metakey.html" rel="nofollow">metaKey</a></td> 
   <td>返回当事件被触发时，"meta" 键是否被按下。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-relatedtarget.html" rel="nofollow">relatedTarget</a></td> 
   <td>返回与事件的目标节点相关的节点。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-screenx.html" rel="nofollow">screenX</a></td> 
   <td>返回当某个事件被触发时，鼠标指针的水平坐标。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-screeny.html" rel="nofollow">screenY</a></td> 
   <td>返回当某个事件被触发时，鼠标指针的垂直坐标。</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td><a href="https://www.w3cschool.cn/jsref/event-shiftkey.html" rel="nofollow">shiftKey</a></td> 
   <td>返回当事件被触发时，"SHIFT" 键是否被按下。</td> 
   <td>2</td> 
  </tr> 
 </tbody> 
</table>

### 方法 ###

<table> 
 <tbody> 
  <tr> 
   <th align="left">方法</th> 
   <th align="left">描述</th> 
   <th align="left">W3C</th> 
  </tr> 
  <tr> 
   <td>initMouseEvent()</td> 
   <td>初始化鼠标事件对象的值</td> 
   <td>2</td> 
  </tr> 
  <tr> 
   <td>initKeyboardEvent()</td> 
   <td>初始化键盘事件对象的值</td> 
   <td>3</td> 
  </tr> 
 </tbody> 
</table>

转载于[https://www.w3cschool.cn/jsref/dom-obj-event.html  
][https_www.w3cschool.cn_jsref_dom-obj-event.html]

[https_www.w3cschool.cn_jsref_dom-obj-event.html]: https://www.w3cschool.cn/jsref/dom-obj-event.html