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Attributes accesskey (attribute) class (attribute) contenteditable (attribute) contextmenu (attribute) data-* (attribute) dir (attribute) draggable (attribute) dropzone (attribute) Global attributes hidden (attribute) id (attribute) itemid (attribute) itemprop (attribute) itemref (attribute) itemscope (attribute) itemtype (attribute) lang (attribute) slot (attribute) spellcheck (attribute) style (attribute) tabindex (attribute) title (attribute) translate (attribute) Elements a abbr address area article aside audio b base bdi bdo blockquote body br button canvas caption cite code col colgroup data datalist dd del details dfn dialog div dl dt em embed fieldset figcaption figure footer form h1 head header hr html i iframe img input input type="button" input type="checkbox" input type="color" input type="date" input type="datetime"-local input type="email" input type="file" input type="hidden" input type="image" input type="month" input type="number" input type="password" input type="radio" input type="range" input type="reset" input type="search" input type="submit" input type="tel" input type="text" input type="time" input type="url" input type="week" ins kbd label legend li link main map mark menu menuitem meta meter nav noscript object ol optgroup option output p param picture pre progress q rp rt rtc ruby s samp script section select slot small source span strong style sub summary sup table tbody td template textarea tfoot th thead time title tr track u ul var video wbr Miscellaneous Attributes Block-level elements CORS enabled image CORS settings attributes Element Inline elements Kinds of HTML content Link types Microdata Optimizing your pages for speculative parsing Preloading content Reference Supported media formats Using the application cache Obsolete acronym applet basefont big blink center command content dir element font frame frameset hgroup image input type="datetime" isindex keygen listing marquee nextid noframes plaintext strike tt xmp
characters

全局屬性itemtype指定將用于定義itemprop數(shù)據(jù)結(jié)構(gòu)中的（項目屬性）的詞匯表的URL 。itemscope用于設(shè)置數(shù)據(jù)結(jié)構(gòu)中設(shè)置的詞匯itemtype將處于活動狀態(tài)的范圍。

谷歌和其他主要的搜索引擎支持schema.org詞匯表的結(jié)構(gòu)化數(shù)據(jù)。這個詞匯表定義了一組標(biāo)準(zhǔn)的類型名稱和屬性名稱。例如，MusicEvent表示音樂會表演，startDate以及location指定音樂會關(guān)鍵細(xì)節(jié)的屬性。在這種情況下，MusicEvent  itemtype，與startDate和MusicEvent定義的位置將被itempropURL使用。

注意：關(guān)于itemtype屬性的更多信息可以在http://schema.org/Thing找到

  • 項目類型屬性必須有一個值是一組無序獨特標(biāo)記，其區(qū)分大小寫的，各是一個有效的和絕對的URL，并且所有定義為使用相同的詞匯。該屬性的值必須至少有一個令牌。

  • 項目類型必須全都是適用規(guī)范中定義的類型（如schema.org），并且必須全部定義為使用相同的詞匯表。

  • itemtype屬性只能在指定了itemscope屬性的元素上指定。

  • itemid屬性只能在同時指定了itemscope屬性和itemtype屬性的元素上指定。它們只能在具有itemscope屬性的元素上指定，其itemtype屬性指定不支持項目的全局標(biāo)識符的詞匯表，如詞匯表規(guī)范所定義。

  • 全局標(biāo)識符的確切含義由詞匯表的規(guī)范決定。留下這樣的規(guī)范來定義是否允許相同全局標(biāo)識符（無論在同一頁面還是不同頁面上）的多個項目存在，以及該詞匯表的哪些處理規(guī)則是關(guān)于處理多個項目的情況相同的ID。

簡單的例子

HTML

<div itemscope itemtype="http://schema.org/Product">  <span itemprop="brand">ACME</span>  <span itemprop="name">Executive Anvil</span></div>

結(jié)構(gòu)化數(shù)據(jù)

itemscope

itemtype

schema.org Product

itemprop

name

Executive Anvil

itemprop

brand Thing


itemprop

name

ACME

樣例

HTML

<div itemscope itemtype="http://schema.org/Product">  <span itemprop="brand">ACME<br></span>  <span itemprop="name">Executive Anvil<br></span>  <img itemprop="image" src="https://pixabay.com/static/uploads/photo/2015/09/05/18/15/suitcase-924605_960_720.png" width="50" height="50" alt="Executive Anvil logo" /><br>  <span itemprop="description">Sleeker than ACME's Classic Anvil, the
    Executive Anvil is perfect for the business traveler
    looking for something to drop from a height.  <br></span>

  Product #: <span itemprop="mpn">925872<br></span>  <span itemprop="aggregateRating" itemscope itemtype="http://schema.org/AggregateRating">
    Rating: <span itemprop="ratingValue">4.4</span> stars, based on <span itemprop="reviewCount">89      </span> reviews  </span><p>  <span itemprop="offers" itemscope itemtype="http://schema.org/Offer">
    Regular price: $179.99<br>    <meta itemprop="priceCurrency" content="USD" />    <span itemprop="price">Sale price: $119.99<br></span>    (Sale ends <time itemprop="priceValidUntil" datetime="2020-11-05">      5 November!</time>)<br>
    Available from: <span itemprop="seller" itemscope itemtype="http://schema.org/Organization">                      <span itemprop="name">Executive Objects<br></span>                    </span>
    Condition: <link itemprop="itemCondition" href="http://schema.org/UsedCondition"/>Previously owned,      in excellent condition<br>    <link itemprop="availability" href="http://schema.org/InStock"/>In stock! Order now!</span></div>

結(jié)果

HTML

結(jié)構(gòu)化數(shù)據(jù)

itemscope

itemtype

Product (http://schema.org/Product)


itemprop

name

Executive Anvil


itemprop

image

https://pixabay.com/static/uploads/photo/2015/09/05/18/15/suitcase-924605_960_720.png


itemprop

description

Sleeker than ACME's Classic Anvil, the Executive Anvil is perfect for the business traveler looking for something to drop from a height.


itemprop

mpn

925872


itemprop

brand Thing



itemprop

name

ACME


itemscope

itempropitemtype

aggregateRatingAggregateRating


itemprop

ratingValue

4.4


itemprop

reviewCount

89


itemprop

offers Offer

http://schema.org/Offer


itemprop

priceCurrency

USD


itemprop

price

119.99


itemprop

priceValidUntil

2020-11-05


itemprop

itemCondition

http://schema.org/UsedCondition


itemprop

availability

http://schema.org/InStock


itemscope

itempropitemtype

seller Organization

http://schema.org/Organization

itemprop

name

Executive Objects


注意：用于從HTML中提取微數(shù)據(jù)結(jié)構(gòu)的便捷工具是Google的結(jié)構(gòu)化數(shù)據(jù)測試工具。試試上面顯示的HTML

產(chǎn)品規(guī)格

規(guī)范

狀態(tài)

評論

物品種類


工作組注意事項 - 不再積極發(fā)展

瀏覽器兼容性

Feature

Chrome

Firefox (Gecko)

Internet Explorer

Opera

Safari

Basic support

(Yes)

(Yes)

(Yes)

(Yes)

(Yes)

Feature

Android

Chrome for Android

Firefox Mobile (Gecko)

IE Mobile

Opera Mobile

Safari Mobile

Basic support

(Yes)

(Yes)

(Yes)

(Yes)

(Yes)

(Yes)

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