定义与用法

The <sub> tag defines subscript text. The <sup> tag defines superscript text.
<sub>标签可定义文字的下标，<sup>标签则可以定义文字的上标

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在HTML和XHTML中的区别

NONE
无

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实例

代码	输出结果
This text contains <sub>subscript</sub> This text contains <sup>superscript</sup>	This text contains subscript This text contains superscript

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标准属性

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

For a full description, go to Standard Attributes.
查看完整的属性

事件属性

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

For a full description, go to Event Attributes.
查看完整的属性

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尝试与演示

Subscript and superscript
How to use the sub and sup elements.
如何使用sub和sup元素

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