From 869dd2069c695ee7040cd3261713212155819f42 Mon Sep 17 00:00:00 2001
From: Peter Bengtsson <mail@peterbe.com>
Date: Mon, 14 Dec 2020 12:18:12 -0500
Subject: final dump 2020-12-14

---
 .../index.html"                                    | 175 +++++++++++++++++++++
 1 file changed, 175 insertions(+)
 create mode 100644 "files/zh-cn/web/api/filereader/\344\270\255\346\255\242\344\272\213\344\273\266(abort)/index.html"

(limited to 'files/zh-cn/web/api/filereader')

diff --git "a/files/zh-cn/web/api/filereader/\344\270\255\346\255\242\344\272\213\344\273\266(abort)/index.html" "b/files/zh-cn/web/api/filereader/\344\270\255\346\255\242\344\272\213\344\273\266(abort)/index.html"
new file mode 100644
index 0000000000..8e36dbb3dd
--- /dev/null
+++ "b/files/zh-cn/web/api/filereader/\344\270\255\346\255\242\344\272\213\344\273\266(abort)/index.html"
@@ -0,0 +1,175 @@
+---
+title: 'FileReader: 中止事件(abort)'
+slug: Web/API/FileReader/中止事件(abort)
+tags:
+  - API
+  - FileReader
+  - ProgressEvent
+  - Reference
+  - Web
+  - abort
+  - 中止
+  - 事件
+translation_of: Web/API/FileReader/abort_event
+---
+<div>{{APIRef}}</div>
+
+<p>在中止读取时会触发 <code>abort</code> 事件: 例如程序调用{{domxref("FileReader.abort()")}}.</p>
+
+<table class="properties">
+ <tbody>
+  <tr>
+   <th scope="row">Bubbles</th>
+   <td>No</td>
+  </tr>
+  <tr>
+   <th scope="row">可取消</th>
+   <td>No</td>
+  </tr>
+  <tr>
+   <th scope="row">接口</th>
+   <td>{{domxref("ProgressEvent")}}</td>
+  </tr>
+  <tr>
+   <th scope="row">事件处理属性</th>
+   <td>{{domxref("FileReader.onabort")}}</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="例子">例子</h2>
+
+<h3 id="实例">实例</h3>
+
+<h4 id="HTML">HTML</h4>
+
+<pre class="brush: html notranslate">&lt;div class="example"&gt;
+
+    &lt;div class="file-select"&gt;
+        &lt;label for="avatar"&gt;选择你的头像:&lt;/label&gt;
+        &lt;input type="file"
+               id="avatar" name="avatar"
+               accept="image/png, image/jpeg"&gt;
+    &lt;/div&gt;
+
+    &lt;img src="" class="preview" height="200" alt="图像预览..."&gt;
+
+    &lt;div class="event-log"&gt;
+        &lt;label&gt;事件日志:&lt;/label&gt;
+        &lt;textarea readonly class="event-log-contents"&gt;&lt;/textarea&gt;
+    &lt;/div&gt;
+
+  &lt;/div&gt;</pre>
+
+<div class="hidden">
+<h4 id="CSS">CSS</h4>
+
+<pre class="brush: css notranslate">img.preview {
+  margin: 1rem 0;
+}
+
+.event-log-contents {
+  width: 18rem;
+  height: 5rem;
+  border: 1px solid black;
+  margin: .2rem;
+  padding: .2rem;
+}
+
+.example {
+  display: grid;
+  grid-template-areas:
+              "select  log"
+              "preview log";
+}
+
+.file-select {
+  grid-area: select;
+}
+
+.preview {
+  grid-area: preview;
+}
+
+.event-log {
+  grid-area: log;
+}
+
+.event-log&gt;label {
+  display: block;
+}
+
+.event-log-contents {
+  resize: none;
+}</pre>
+</div>
+
+<h4 id="JS">JS</h4>
+
+<pre class="brush: js notranslate">const fileInput = document.querySelector('input[type="file"]');
+const preview = document.querySelector('img.preview');
+const eventLog = document.querySelector('.event-log-contents');
+const reader = new FileReader();
+
+function handleEvent(event) {
+    eventLog.textContent = eventLog.textContent + `${event.type}: ${event.loaded} bytes transferred\n`;
+
+    if (event.type === "load") {
+        preview.src = reader.result;
+    }
+}
+
+function addListeners(reader) {
+    reader.addEventListener('loadstart', handleEvent);
+    reader.addEventListener('load', handleEvent);
+    reader.addEventListener('loadend', handleEvent);
+    reader.addEventListener('progress', handleEvent);
+    reader.addEventListener('error', handleEvent);
+    reader.addEventListener('abort', handleEvent);
+}
+
+function handleSelected(e) {
+    eventLog.textContent = '';
+    const selectedFile = fileInput.files[0];
+    if (selectedFile) {
+        addListeners(reader);
+        reader.readAsDataURL(selectedFile);
+    }
+    reader.abort();
+}
+
+fileInput.addEventListener('change', handleSelected);返回返回发的
+</pre>
+
+<h4 id="返回结果">返回结果</h4>
+
+<p>{{ EmbedLiveSample('Live_example', '100%', '300px') }}</p>
+
+<h2 id="参数">参数</h2>
+
+<table class="standard-table">
+ <thead>
+  <tr>
+   <th scope="col">参数</th>
+   <th scope="col">状态</th>
+  </tr>
+ </thead>
+ <tbody>
+  <tr>
+   <td>{{SpecName('File API', '#dfn-abort-event')}}</td>
+   <td>{{Spec2('File API')}}</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器兼容性">浏览器兼容性</h2>
+
+<div class="hidden">此页上的兼容性表是从结构化数据生成的。如果你想对数据有所贡献，请查看https://github.com/mdn/browser-compat-data并向我们发送请求。</div>
+
+<p>{{Compat("api.FileReader.abort_event")}}</p>
+
+<h2 id="另请参见">另请参见</h2>
+
+<ul>
+ <li>相关事件: {{domxref("FileReader.loadstart_event", "loadstart")}}, {{domxref("FileReader.loadend_event", "loadend")}}, {{domxref("FileReader.progress_event", "progress")}}, {{domxref("FileReader.error_event", "error")}}, {{domxref("FileReader.load_event", "load")}}.</li>
+</ul>
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