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+---
+title: CSSStyleRule.selectorText
+slug: Web/API/CSSStyleRule/selectorText
+translation_of: Web/API/CSSStyleRule/selectorText
+---
+<div>{{APIRef("CSSOM") }}</div>
+
+<h2 id="Summary" name="Summary">概述</h2>
+
+<p><code><strong>CSSRule.selectorText</strong></code> 属性返回CSS规则的选择符文本，只读。动态设置CSS规则，请看 <a href="/en-US/docs/DOM/Using_dynamic_styling_information" title="/en-US/docs/DOM/Using_dynamic_styling_information">Using dynamic styling information</a>.</p>
+
+<h2 id="Syntax" name="Syntax">语法</h2>
+
+<pre class="syntaxbox"><em>string</em> = cssRule.selectorText
+</pre>
+
+<h2 id="Example" name="Example">例子</h2>
+
+<pre class="brush: js">// for cssrule: body { background-color: darkblue; }
+var stylesheet = document.styleSheets[0];
+
+alert(stylesheet.cssRules[0].selectorText); // body
+</pre>
+
+<h2 class="Notes" id="说明">说明</h2>
+
+<p>浏览器解析选择符的时候可能会剔除不必要的空白字符</p>
+
+<h2 id="Specification" name="Specification">标准</h2>
+
+<ul>
+ <li><a href="http://www.w3.org/TR/DOM-Level-2-Style/css.html#CSS-CSSRule" title="Document Object Model CSS #CSS-CSSRule">Document Object Model CSS - #CSS-CSSRuleCSS</a></li>
+</ul>