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---
title: FileReader.error
slug: Web/API/FileReader/error
translation_of: Web/API/FileReader/error
---
<div>{{APIRef("File API")}}</div>
<p>返回读取文件时的错误信息</p>
<h2 id="语法">语法</h2>
<pre class="syntaxbox">var <var>error</var> = <em>instanceOfFile</em>Reader.error
</pre>
<h2 id="返回值">返回值</h2>
<p>返回一个 {{domxref("DOMError")}}</p>
<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>{{SpecName("File API", "#FileReader-interface", "FileReader")}}</td>
<td>{{Spec2("File API")}}</td>
<td>Initial definition</td>
</tr>
</tbody>
</table>
<h2 id="浏览器兼容性">浏览器兼容性</h2>
{{Compat("api.FileReader.error")}}
<h2 id="相关链接">相关链接</h2>
<ul>
<li>{{domxref("FileReader")}}</li>
</ul>
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