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authorPeter Bengtsson <mail@peterbe.com>2020-12-08 14:40:17 -0500
committerPeter Bengtsson <mail@peterbe.com>2020-12-08 14:40:17 -0500
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+---
+title: counter-increment
+slug: Web/CSS/counter-increment
+translation_of: Web/CSS/counter-increment
+---
+<div>{{CSSRef}}</div>
+
+<h2 id="Summary" name="Summary">概要</h2>
+
+<p><code>counter-increment</code>属性用于将<a href="/en-US/docs/CSS_Counters" title="CSS_Counters">CSS Counters</a>的值增加给定值。可以使用 {{cssxref("counter-reset")}} 属性重置计数器的值。</p>
+
+<p>{{cssinfo}}</p>
+
+<h2 id="Syntax" name="Syntax">语法</h2>
+
+<pre class="brush:css">/* Increment counter-name by 1 */
+counter-increment: counter-name;
+
+/* Decrement counter-name by 1 */
+counter-increment: counter-name -1;
+
+/* Increment counter1 by 1, and decrement counter2 by 4 */
+counter-increment: counter 1 counter2 -4;
+
+/* Do not increment/decrement anything: used to hide less specific values */
+counter-increment: none;
+
+/* Global values */
+counter-increment: inherit;
+counter-increment: initial;
+counter-increment: unset;
+</pre>
+
+<h3 id="Values" name="Values">可选值</h3>
+
+<dl>
+ <dt>{{cssxref("custom-ident", "&lt;custom-ident&gt;")}}</dt>
+ <dd>递增的计数器的名称。该标识符由不区分大小写的字母a到z,数字0到9,下划线(_)和/或短划线( - )的组合组成。第一个非破折号字符必须是一个字母(即,在它的开头没有数字,即使前面有破折号。)此外,在标识符的开头禁止使用两个破折号。在任何案例组合中都不能是none,unset,initial或inherit。</dd>
+ <dt>{{cssxref("&lt;integer&gt;")}}</dt>
+ <dd>计数器的值。如果没有给出,默认为1。</dd>
+ <dt><code>none</code></dt>
+ <dd>不得增加计数器。用作默认值,或取消更具体规则的增量。</dd>
+</dl>
+
+
+
+<p>你可以根据需要指定要递增的计数器,每个计数器用空格分隔。</p>
+
+<h3 id="语法形式">语法形式</h3>
+
+<pre class="syntaxbox">{{csssyntax}}
+</pre>
+
+<h2 id="Examples" name="Examples">示例</h2>
+
+<pre class="brush: css">h1 {
+ counter-increment: chapter section 2 page;
+ /* Increases the value of the chapter and page counters by 1
+ and the section counter by 2. */
+}
+</pre>
+
+<h2 id="Specifications" name="Specifications">规范</h2>
+
+<table class="standard-table">
+ <thead>
+ <tr>
+ <th scope="col">Specification</th>
+ <th scope="col">Status</th>
+ <th scope="col">Comment</th>
+ </tr>
+ </thead>
+ <tbody>
+ <tr>
+ <td>{{ SpecName('CSS3 Lists', '#counter-increment', 'counter-increment') }}</td>
+ <td>{{ Spec2('CSS3 Lists') }}</td>
+ <td>No change.</td>
+ </tr>
+ <tr>
+ <td>{{SpecName('CSS2.1', 'generate.html#propdef-counter-increment', 'counter-increment')}}</td>
+ <td>{{Spec2('CSS2.1')}}</td>
+ <td>Initial definition.</td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_Compatibility" name="Browser_Compatibility">浏览器兼容性</h2>
+
+<p>{{CompatibilityTable}}</p>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>Feature</th>
+ <th>Chrome</th>
+ <th>Firefox (Gecko)</th>
+ <th>Internet Explorer</th>
+ <th>Opera</th>
+ <th>Safari (WebKit)</th>
+ </tr>
+ <tr>
+ <td>Basic support</td>
+ <td>2.0</td>
+ <td>1.0 (?)</td>
+ <td>8.0</td>
+ <td>9.2</td>
+ <td>3.0 (?)</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>Feature</th>
+ <th>Android</th>
+ <th>Firefox Mobile (Gecko)</th>
+ <th>IE Phone</th>
+ <th>Opera Mobile</th>
+ <th>Safari Mobile</th>
+ </tr>
+ <tr>
+ <td>Basic support</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<h2 id="See_also" name="See_also">参考</h2>
+
+<ul>
+ <li><a href="/en-US/docs/CSS/Counters" title="CSS Counters">CSS Counters</a>, {{Cssxref("counter-reset")}}</li>
+</ul>