Definition and Usage
用法

Defines a push button. Inside a button element you can put content, like text or images. This is the difference between this element and buttons created with the input element.
定义一个按钮，在按钮元素里还能放些内容，比如文字或是图片。这个元素和使用input建立的按钮是有所区别的。

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Differences Between HTML and XHTML
在HTML和XHTML中的区别

NONE
无

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Example
实例

源代码	输出结果
<button>Click Me!</button>	Click Me!

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Optional Attributes
可选属性

DTD indicates in which DTD the attribute is allowed. S=Strict, T=Transitional, and F=Frameset.
下表中的DTD列指明了被支持的DTD属性。S=Strict（精确的），T=Transitional（传统的），F=Frameset（框架）

属性	值	描述	DTD
disabled	disabled	Disables the button 按钮不可用	STF
name	button_name	Specifies a unique name for the button 为按钮指定唯一的name	STF
type	button reset submit	Defines the type of button 定义按钮的类型	STF
value	some_value	Specifies an initial value for the button. The value can be changed by a script 为按钮指定最初的值。可以由script来进行改变	STF

Standard Attributes
标准属性

id, class, title, style, dir, lang, xml:lang, accesskey, tabindex

For a full description, go to Standard Attributes.
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Event Attributes
事件属性

onfocus, onblur, onclick, ondblclick, onmousedown, onmouseup, onmouseover, onmousemove, onmouseout, onkeypress, onkeydown, onkeyup

For a full description, go to Event Attributes.
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