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global attribute itemtype specifies the URL of the vocabulary that will be used to define itemprop 's (item properties) in the data structure. itemscope is used to set the scope of where in the data structure the vocabulary set by itemtype will be active.

Google and other major search engines support the schema.org vocabulary for structured data. This vocabulary defines a standard set of type names and property names. For example, MusicEvent indicates a concert performance, with startDate and location properties specifying the concert's key details. In this case, MusicEvent would be the URL used by itemtype ，采用 startDate and location as itemprop 's which MusicEvent defines.

注意： More about itemtype attributes can be found at http://schema.org/Thing

  • itemtype attribute must have a value that is an unordered set of unique tokens which are case-sensitive, each is a valid and absolute URL, and all defined to use the same vocabulary. The attribute's value must have at least one token.
  • The item types must all be types defined in applicable specifications (such as schema.org ), and must all be defined to use the same vocabulary.
  • The itemtype attribute can only be specified on elements which have an itemscope attribute specified.
  • The itemid attribute can only be specified on elements which have both an itemscope attribute and an itemtype attribute specified. They must only be specified on elements with an itemscope attribute, whose itemtype attribute specifies a vocabulary not supporting global identifiers for items, as defined by that vocabulary's specification.
  • The exact meaning of a global identifier is determined by the vocabulary's specification. It is left to such specifications to define whether multiple items of the same global identifier (whether on the same page or different pages) are allowed to exist, and what processing rules for that vocabulary are, with respect to handling the case of multiple items with the same ID.

简单范例

HTML 

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

结构化数据

itemscope itemtype schema.org Product
itemprop 名称 Executive Anvil
itemprop brand [Thing]
itemprop 名称 ACME

范例

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>

结果

HTML

结构化数据

itemscope itemtype Product (http://schema.org/Product)
itemprop 名称 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 名称 ACME
itemscope itemprop[itemtype] aggregateRating[AggregateRating]
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 itemprop[itemtype] seller [Organization] http://schema.org/Organization
itemprop 名称 Executive Objects

注意 : A handy tool for extracting microdata structures from HTML is Google's Structured Data Testing Tool . Try it on the HTML shown above

规范

规范 状态 注释
HTML Microdata
The definition of 'itemtype' in that specification. 		工作草案
HTML 实时标准
The definition of 'itemprop' in that specification. 		实时标准

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据
桌面 移动
Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
itemtype Chrome 完整支持 Yes Edge 完整支持 12 Firefox 完整支持 Yes IE 完整支持 Yes Opera 完整支持 Yes Safari 完整支持 Yes WebView Android 完整支持 Yes Chrome Android 完整支持 Yes Firefox Android 完整支持 Yes Opera Android 完整支持 Yes Safari iOS 完整支持 Yes Samsung Internet Android 完整支持 Yes

图例

完整支持

完整支持

另请参阅

元数据

  • 最后修改：
  1. HTML
  2. 教程：
  3. HTML 基础
  4. HTML 介绍
    1. Introduction to HTML overview
    2. Getting started with HTML
    3. What's in the head? Metadata in HTML
    4. HTML text fundamentals
    5. Creating hyperlinks
    6. Advanced text formatting
    7. Document and website structure
    8. Debugging HTML
    9. Assessment: Marking up a letter
    10. Assessment: Structuring a page of content
  5. 多媒体和嵌入
    1. Multimedia and embedding overview
    2. Images in HTML
    3. Video and audio content
    4. From object to iframe — other embedding technologies
    5. Adding vector graphics to the Web
    6. Responsive images
    7. Assessment: Mozilla splash page
  6. 参考：
  7. HTML 元素
    1. <a>
    2. <abbr>
    3. <acronym>
    4. <address>
    5. <applet>
    6. <area>
    7. <article>
    8. <aside>
    9. <audio>
    10. <b>
    11. <base>
    12. <basefont>
    13. <bdi>
    14. <bdo>
    15. <bgsound>
    16. <big>
    17. <blink>
    18. <blockquote>
    19. <body>
    20. <br>
    21. <button>
    22. <canvas>
    23. <caption>
    24. <center>
    25. <cite>
    26. <code>
    27. <col>
    28. <colgroup>
    29. <command>
    30. <content>
    31. <data>
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    34. <del>
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    36. <dfn>
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    40. <dl>
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    42. <element>
    43. <em>
    44. <embed>
    45. <fieldset>
    46. <figcaption>
    47. <figure>
    48. <font>
    49. <footer>
    50. <form>
    51. <frame>
    52. <frameset>
    53. <h1>
    54. <head>
    55. <header>
    56. <hgroup>
    57. <hr>
    58. <html>
    59. <i>
    60. <iframe>
    61. <image>
    62. <img>
    63. <input>
    64. <ins>
    65. <isindex>
    66. <kbd>
    67. <keygen>
    68. <label>
    69. <legend>
    70. <li>
    71. <link>
    72. <listing>
    73. <main>
    74. <map>
    75. <mark>
    76. <marquee>
    77. <menu>
    78. <menuitem>
    79. <meta>
    80. <meter>
    81. <multicol>
    82. <nav>
    83. <nextid>
    84. <nobr>
    85. <noembed>
    86. <noframes>
    87. <noscript>
    88. <object>
    89. <ol>
    90. <optgroup>
    91. <option>
    92. <output>
    93. <p>
    94. <param>
    95. <picture>
    96. <plaintext>
    97. <pre>
    98. <progress>
    99. <q>
    100. <rb>
    101. <rp>
    102. <rt>
    103. <rtc>
    104. <ruby>
    105. <s>
    106. <samp>
    107. <script>
    108. <section>
    109. <select>
    110. <shadow>
    111. <slot>
    112. <small>
    113. <source>
    114. <spacer>
    115. <span>
    116. <strike>
    117. <strong>
    118. <style>
    119. <sub>
    120. <summary>
    121. <sup>
    122. <table>
    123. <tbody>
    124. <td>
    125. <template>
    126. <textarea>
    127. <tfoot>
    128. <th>
    129. <thead>
    130. <time>
    131. <title>
    132. <tr>
    133. <track>
    134. <tt>
    135. <u>
    136. <ul>
    137. <var>
    138. <video>
    139. <wbr>
    140. <xmp>
  8. 全局属性
    1. accesskey
    2. autocapitalize
    3. class
    4. contenteditable
    5. contextmenu
    6. data-*
    7. dir
    8. draggable
    9. dropzone
    10. hidden
    11. id
    12. inputmode
    13. is
    14. itemid
    15. itemprop
    16. itemref
    17. itemscope
    18. itemtype
    19. lang
    20. part
    21. slot
    22. spellcheck
    23. style
    24. tabindex
    25. title
    26. translate
    27. x-ms-acceleratorkey
    28. x-ms-format-detection
  9. <input> 类型
    1. <input type="button">
    2. <input type="checkbox">
    3. <input type="color">
    4. <input type="date">
    5. <input type="datetime">
    6. <input type="datetime-local">
    7. <input type="email">
    8. <input type="file">
    9. <input type="hidden">
    10. <input type="image">
    11. <input type="month">
    12. <input type="number">
    13. <input type="password">
    14. <input type="radio">
    15. <input type="range">
    16. <input type="reset">
    17. <input type="search">
    18. <input type="submit">
    19. <input type="tel">
    20. <input type="text">
    21. <input type="time">
    22. <input type="url">
    23. <input type="week">
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