时间：2015-08-14 15:09:19 来源：互联网 阅读次数：16777215
实例：(要注意的是div必须放到js前面才行)
复制代码代码如下
从W3C的发展时间轴来看, DOM(Document Object Model)的模型可以分为两种, DOM 0 及 DOM 2. 从数字来看就可以知道DOM 0 当然是比较旧的协议, 我们可以从以下的表格来看:
DOM1 协定:
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Event Name |
Description |
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onblur() |
The element has lost focus (that is, it is not selected by the user). |
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onchange0 |
The element has either changed (such as by typing into a text field) or the element has lost focus. |
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onclick0 |
The mouse has been clicked on an element. |
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ondblclick() |
The mouse has been double-clicked on an element. |
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onfocus() |
The element has gotten focus. |
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onkeydown() |
A keyboard key has been pressed down (as opposed to released) while the element has focus. |
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onkeypress() |
A keyboard key has been pressed while the element has focus. |
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onkeyup() |
A keyboard key has been released while the element has focus. |
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onload() |
The element has loaded (document, frameset, or image). |
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onmousedown() |
A mouse button has been pressed. |
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onmousemove() |
The mouse has been moved. |
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onmouseout() |
The mouse has been moved off of or away from an element. |
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onmouseover() |
The mouse has moved over an element. |
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onmouseup() |
A mouse button has been released. |
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onreset() |
The form element has been reset, such as when a form reset button is pressed. |
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onresize() |
The window's size has been changed. |
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onselect() |
The text of a form element has been selected. |
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onsubmit() |
The form has been submitted. |
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onunload() |
The document or frameset has been unloaded. |
DOM2 的进化:
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DOM 0 Event |
DOM 2 Event |
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onblur() |
blur |
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onfocus() |
focus |
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onchange() |
change |
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onmouseover() |
mouseover |
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onmouseout() |
mouseout |
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onmousemove() |
mousemove |
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onmousedown() |
mousedown |
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onmouseup() |
mouseup |
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onclick() |
click |
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ondblclick() |
dblclick |
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onkeydown() |
keydown |
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onkeyup() |
keyup |
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onkeypress() |
keypress |
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onsubmit() |
submit |
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onload() |
load |
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onunload() |
unload |
新的DOM2 用法可以addEventListener()这个函数来观察到:
addEventListener(event,function,capture/bubble);
参数event如上表所示, function是要执行的函数, capture与bubble分别是W3C制定得两种时间模式,简单来说capture就是从document的开始读到最后一行, 再执行事件, 而bubble则是先寻找指定的位置再执行事件.
capture/bubble的参数是布尔值, True表示用capture, False则是bubble.Windows Internet Explorer也有制定一种EventHandler, 是 attachEvent(), 格式如下:
window.attachEvent(”submit”,myFunction());
比较特别的是attachEvent不需要指定capture/bubble的参数, 因为在windows IE环境下都是使用Bubble的模式.这里用图像的Rollover例子来表现事件的用法:
“http://www.w3.org/TR/html4/strict.dtd“>
Rollover
alt=”Home”>
alt=”About”>
alt=”Blog”>
上述的 typeof window.addEventListener != “undefined” 程序代码可以判断使用者的浏览器是否支持AddEventListener这个事件模型, 如果不支持就使用attachEvent.
W3C 及 IE 同时支持移除指定的事件, 用途是移除设定的事件, 格式分别如下:
W3C格式:
removeEventListener(event,function,capture/bubble);
Windows IE的格式如下:
detachEvent(event,function);
