---
title: escape()
slug: Web/JavaScript/Reference/Global_Objects/escape
translation_of: Web/JavaScript/Reference/Global_Objects/escape
---
<div>
<div>
<div>{{jsSidebar("Objects")}} {{deprecated_header}}</div>
</div>
</div>

<h2 id="Summary" name="Summary">概览</h2>

<p>废弃的 <code><strong>escape()</strong></code> 方法生成新的由十六进制转义序列替换的字符串. 使用 {{jsxref("Global_Objects/encodeURI", "encodeURI")}} 或 {{jsxref("Global_Objects/encodeURIComponent", "encodeURIComponent")}} 代替.</p>

<h2 id="Syntax" name="Syntax">语法</h2>

<pre class="syntaxbox"><code>escape(str)</code></pre>

<h3 id="Parameters" name="Parameters">参数</h3>

<dl>
 <dt><code>str</code></dt>
 <dd>待编码的字符串.</dd>
</dl>

<h2 id="Description" name="Description">描述</h2>

<p><code>escape</code> 函数是全局对象的属性. 特色字符如: @*_+-./ 被排除在外.</p>

<p>字符的16进制格式值,当该值小于等于0xFF时,用一个2位转移序列: %xx 表示. 大于的话则使用4位序列:%<strong>u</strong>xxxx 表示.</p>

<h2 id="示例">示例</h2>

<pre class="brush: js">escape("abc123");     // "abc123"
escape("äöü");        // "%E4%F6%FC"
escape("ć");          // "%u0107"

// special characters
escape("@*_+-./");    // "@*_+-./"</pre>

<h2 id="规范">规范</h2>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
  <tr>
   <td>ECMAScript 1st Edition.</td>
   <td>Standard</td>
   <td>Initial definition.</td>
  </tr>
  <tr>
   <td>{{SpecName('ES5.1', '#sec-B.2.1', 'escape')}}</td>
   <td>{{Spec2('ES5.1')}}</td>
   <td>Defined in the (informative) Compatibility Annex B</td>
  </tr>
  <tr>
   <td>{{SpecName('ES6', '#sec-escape-string', 'escape')}}</td>
   <td>{{Spec2('ES6')}}</td>
   <td>Defined in the (normative) Annex B for Additional ECMAScript Features for Web Browsers</td>
  </tr>
 </tbody>
</table>

<h2 id="浏览器兼容性">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</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{ CompatVersionUnknown() }}</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android</th>
   <th>Chrome for Android</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{ CompatVersionUnknown() }}</td>
  </tr>
 </tbody>
</table>
</div>

<h2 id="See_Also" name="See_Also">其他链接</h2>

<ul>
 <li>{{jsxref("Global_Objects/encodeURI", "encodeURI")}}</li>
 <li>{{jsxref("Global_Objects/encodeURIComponent", "encodeURIComponent")}}</li>
</ul>