📅 最后修改于: 2020-11-02 05:56:56 🧑 作者: Mango
当浏览器对用户操作做出反应时，则称为事件。例如，当您单击提交按钮时，浏览器将显示一个信息框。
在HTML5中，有许多可用的事件属性，可以使用诸如JavaScript之类的编程语言来激活它们。
以下是事件属性表，使用这些属性可以执行多个事件。
Windows事件与window对象相关，并且只能与
标签。| Attribute | Description |
|---|---|
| onafterprint | Executed the script after the document is printed. |
| onbeforeprint | Executed the script before the document is printed. |
| onbeforeunload | Executed the script before a document being unloaded. |
| onerror | Executed the script when an error occurs. |
| onhashchange | Executed the script when the anchor part in URL of the webpage is changed. |
| onload | Executed the script when the webpage is entirely loaded. |
| onmessage | Executed the script when a message event occurs. |
| onoffline | Executed the script when the network connection is disconnected, and browser started working offline. |
| ononline | Executed the script when the browser started working online |
| onpagehide | Executed the script when the current webpage is hidden such as if the user has moved away from the current webpage. |
| onpageshow | Executed the script when the current webpage is focused. |
| onpopstate | Executed the script when the window’s active history is changed. |
| onresize | Executed the script when the window is resized. |
| onstorage | Executed the script when web storage is updated. |
| onunload | Executed the script when the current webpage is unloaded, or window is closed. |
当用户在表单中执行某些操作(例如提交表单，选择输入字段等)时，发生表单事件。
表单事件可以与任何元素一起使用，但是这些事件主要与HTML表单元素一起使用。
以下是所有表单事件属性的列表：
| Attribute | Description |
|---|---|
| onblur | Executed the script when form element loses the focus. |
| onchange | Executed the script when the value of the element is changed. |
| onfocus | Trigger an event when the element gets focused. |
| oninput | Executed the script when the user enters input to the element. |
| oninvalid | Executed the script when the element does not satisfy its predefined constraints. |
| onreset | Triggers the event when user reset the form element values. |
| onsearch | Triggers the event when a search field receives some input. |
| onselect | Triggers the event when the user has selected some text. |
| onsubmit | Triggers the event when a form is submitted. |
用户与键盘交互时发生键盘事件。以下是键盘事件的列表。
| Attribute | Description |
|---|---|
| onkeydown | Triggers the event when the user presses down a key on the keyboard. |
| onkeypress | Trigger the event when the user presses the key which displays some character. |
| onkeyup | Trigger the event when the user releases the currently pressed key. |
| Attribute | Description |
|---|---|
| onclick | Trigger the event when the mouse clicks on the element. |
| ondblclick | Trigger the event when mouse double-click occurs on the element. |
| onmousedown | Trigger the event when the mouse button is pressed on the element. |
| onmousemove | Trigger the event when the mouse pointer moves over the element. |
| onmouseout | Trigger the event when the mouse moves outside the element. |
| onmouseover | Trigger the event when the mouse moves onto the element. |
| onmouseup | Trigger the event when the mouse button is released. |
| onmousewheel | Deprecated. Use the onwheel attribute. |
| onwheel | Trigger the event when the mouse wheel rolls up or down on the element |
| Attribute | Description |
|---|---|
| oncopy | Trigger the event when the user copies the content to the system clipboard. |
| oncut | Trigger the event when the content of an element is cut and copy to the clipboard. |
| onpaste | Trigger the event when the user pastes some content in an element. |
| Attribute | Description |
|---|---|
| onabort | Executed the script when media playback is aborted. |
| oncanplay | Executed the script when the media file is ready to play. |
| oncanplaythrough | Executed the script when the media file is ready to play without buffering or stopping. |
| oncuechange | Executed the script text cue of |
| ondurationchange | Executed the script when the media file duration is changed. |
| onemptied | Executed the script if media occurs some fatal error, and the file becomes unavailable. |
| onended | Executed the script when the media file occurs its end point. |
| onerror | Executed the script when some error occurred while fetching the media data. |
| onloadeddata | Executed the script when media data is loaded. |
| onloadedmetadata | Executed the script when metadata of media file is loaded. |
| onloadstart | Executed the script when loading of media file starts. |
| onpause | Executed the script when media playback is paused. |
| onplay | Executed the script when media file ready to play after being paused. |
| onplaying | Executed the script when media file is started playing. |
| onprogress | Executed the script when the browser is in the process of getting the media data. |
| onratechange | Executed the script when playback speed changed. |
| onseeked | Executed the script when seek operation is ended and seeking attribute is set to false. |
| onseeking | Executed the script when seek operation is active and seeking attribute is set to true. |
| onstalled | Executed the script when browser unexpectedly stopped fetching the data media. |
| onsuspend | Executed the script if fetching of media data is intentionally stopped. |
| ontimeupdate | Executed the script when playback position is changed, such as if a user fasts forward the track. |
| onvolumechange | Executed the script when media volume is changed (muted or unmuted). |
| onwaiting | Executed the script if playback pause to wait for loading more data. |