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131 lines
7.3 KiB
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<article id="wikiArticle">
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<div></div>
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<div> </div>
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<p><code><strong>decodeURI()</strong></code> 函数解码一个由<a href="Reference/Global_Objects/encodeURI" title='encodeURI() 函数通过将特定字符的每个实例替换为一个、两个、三或四转义序列来对统一资源标识符 (URI) 进行编码 (该字符的 UTF-8 编码仅为四转义序列)由两个 "代理" 字符组成)。'><code>encodeURI</code></a> 先前创建的统一资源标识符（URI）或类似的例程。</p>
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<h2 id="语法">语法</h2>
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<pre><code class="language-javascript"><code>decodeURI(<em>encodedURI</em>)</code></code></pre>
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<h3 id="参数">参数</h3>
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<dl>
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<dt><code>encodedURI</code></dt>
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<dd>一个完整的编码过的 URI</dd>
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</dl>
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<h3 id="返回值">返回值</h3>
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<p>A new string representing the unencoded version of the given encoded Uniform Resource Identifier (URI).</p>
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<h3 id="Exceptions">Exceptions</h3>
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<p>Throws an <a href="Reference/Global_Objects/URIError" title="URIError 对象用来表示以一种错误的方式使用全局URI处理函数而产生的错误。"><code>URIError</code></a> ("malformed URI sequence") exception when <code><em>encodedURI</em></code> contains invalid character sequences.</p>
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<h2 id="描述">描述</h2>
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<p>将已编码 URI 中所有能识别的转义序列转换成原字符，但不能解码那些不会被 <a href="Reference/Global_Objects/encodeURI" title='encodeURI() 函数通过将特定字符的每个实例替换为一个、两个、三或四转义序列来对统一资源标识符 (URI) 进行编码 (该字符的 UTF-8 编码仅为四转义序列)由两个 "代理" 字符组成)。'><code>encodeURI</code></a> 编码的内容（例如 "<code>#</code>"）。</p>
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<h2 id="示例">示例</h2>
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<h3 id="解码一个西里尔字母（Cyrillic）URL">解码一个西里尔字母（Cyrillic）URL</h3>
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<pre><code class="language-javascript">decodeURI("https://developer.mozilla.org/ru/docs/JavaScript_%D1%88%D0%B5%D0%BB%D0%BB%D1%8B");
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// "https://developer.mozilla.org/ru/docs/JavaScript_шеллы"
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</code></pre>
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<h3 id="捕捉异常">捕捉异常</h3>
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<pre>try {
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var a = decodeURI('%E0%A4%A');
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} catch(e) {
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console.error(e);
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}
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// URIError: malformed URI sequence</code></pre>
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<h2 id="规范">规范</h2>
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<table class="standard-table">
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<tbody>
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<tr>
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<th scope="col">规范</th>
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<th scope="col">状态</th>
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<th scope="col">备注</th>
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</tr>
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<tr>
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<td><a class="external" href="https://www.ecma-international.org/publications/files/ECMA-ST-ARCH/ECMA-262,%203rd%20edition,%20December%201999.pdf" hreflang="en" lang="en" rel="noopener" title="ECMAScript 3rd Edition (ECMA-262)">ECMAScript 3rd Edition (ECMA-262)</a></td>
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<td><span class="spec-Standard">Standard</span></td>
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<td>初始定义</td>
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</tr>
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<tr>
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<td><a class="external" href="https://www.ecma-international.org/ecma-262/5.1/#sec-15.1.3.1" hreflang="en" lang="en" rel="noopener">ECMAScript 5.1 (ECMA-262)<br/><small lang="zh-CN">decodeURI</small></a></td>
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<td><span class="spec-Standard">Standard</span></td>
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<td> </td>
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</tr>
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<tr>
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<td><a class="external" href="https://www.ecma-international.org/ecma-262/6.0/#sec-decodeuri-encodeduri" hreflang="en" lang="en" rel="noopener">ECMAScript 2015 (6th Edition, ECMA-262)<br/><small lang="zh-CN">decodeURI</small></a></td>
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<td><span class="spec-Standard">Standard</span></td>
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<td> </td>
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</tr>
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<tr>
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<td><a class="external" href="https://tc39.github.io/ecma262/#sec-decodeuri-encodeduri" hreflang="en" lang="en" rel="noopener">ECMAScript Latest Draft (ECMA-262)<br/><small lang="zh-CN">decodeURI</small></a></td>
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<td><span class="spec-Draft">Draft</span></td>
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<td> </td>
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</tr>
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</tbody>
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</table>
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<h2 id="浏览器兼容性">浏览器兼容性</h2>
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<p></p><div class="blockIndicator warning"><strong><a class="external" href="https://github.com/mdn/browser-compat-data" rel="noopener">We're converting our compatibility data into a machine-readable JSON format</a></strong>.
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This compatibility table still uses the old format,
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because we haven't yet converted the data it contains.
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<strong><a class="new" href="/zh-CN/docs/MDN/Contribute/Structures/Compatibility_tables" rel="nofollow">Find out how you can help!</a></strong></div>
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<div class="htab">
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<a id="AutoCompatibilityTable" name="AutoCompatibilityTable"></a>
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<ul>
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<li class="selected"><a>Desktop</a></li>
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<li><a>Mobile</a></li>
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</ul>
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</div><p></p>
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<div id="compat-desktop">
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<table class="compat-table">
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<tbody>
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<tr>
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<th>特性</th>
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<th>Chrome</th>
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<th>Firefox (Gecko)</th>
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<th>Internet Explorer</th>
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<th>Opera</th>
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<th>Safari</th>
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</tr>
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<tr>
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<td>基础功能</td>
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<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
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<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
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<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
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<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
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<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
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</tr>
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</tbody>
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</table>
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</div>
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<div id="compat-mobile">
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<table class="compat-table">
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<tbody>
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<tr>
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<th>特性</th>
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<th>Android</th>
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<th>Chrome for Android</th>
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<th>Firefox Mobile (Gecko)</th>
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<th>IE Mobile</th>
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<th>Opera Mobile</th>
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<th>Safari Mobile</th>
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</tr>
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<tr>
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<td>基础功能</td>
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<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
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<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
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<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
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<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
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<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
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<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
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</tr>
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</tbody>
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</table>
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</div>
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<h2 id="相关链接">相关链接</h2>
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<ul>
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<li><a href="Reference/Global_Objects/decodeURIComponent" title="decodeURIComponent() 方法用于解码由 encodeURIComponent 方法或者其它类似方法编码的部分统一资源标识符（URI）。"><code>decodeURIComponent</code></a></li>
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<li><a href="Reference/Global_Objects/encodeURI" title='encodeURI() 函数通过将特定字符的每个实例替换为一个、两个、三或四转义序列来对统一资源标识符 (URI) 进行编码 (该字符的 UTF-8 编码仅为四转义序列)由两个 "代理" 字符组成)。'><code>encodeURI</code></a></li>
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<li><a href="Reference/Global_Objects/encodeURIComponent" title="encodeURIComponent()是对统一资源标识符（URI）的组成部分进行编码的方法。它使用一到四个转义序列来表示字符串中的每个字符的UTF-8编码（只有由两个Unicode代理区字符组成的字符才用四个转义字符编码）。"><code>encodeURIComponent</code></a></li>
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</ul>
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<p>
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<audio style="display: none;"> </audio>
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</p>
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<p>
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<audio style="display: none;"> </audio>
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</p>
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</article> |