From 33058f2b292b3a581333bdfb21b8f671898c5060 Mon Sep 17 00:00:00 2001
From: Peter Bengtsson <mail@peterbe.com>
Date: Tue, 8 Dec 2020 14:40:17 -0500
Subject: initial commit

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 files/zh-cn/web/api/textmetrics/width/index.html | 101 +++++++++++++++++++++++
 1 file changed, 101 insertions(+)
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(limited to 'files/zh-cn/web/api/textmetrics/width')

diff --git a/files/zh-cn/web/api/textmetrics/width/index.html b/files/zh-cn/web/api/textmetrics/width/index.html
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+---
+title: TextMetrics.width
+slug: Web/API/TextMetrics/width
+translation_of: Web/API/TextMetrics/width
+---
+<div>{{APIRef("Canvas API")}}</div>
+
+<p>只读的 <code><strong>TextMetrics</strong></code><strong><code><span>.width</span></code></strong> 属性，包含文本先前的宽度（行内盒子的宽度），使用 CSS 像素计算。</p>
+
+<h2 id="Syntax" name="Syntax">语法</h2>
+
+<pre class="syntaxbox"><var>readonly <em>metrics</em></var>.width;</pre>
+
+<h2 id="示例">示例</h2>
+
+<p>事先给定 {{HTMLElement("canvas")}} 元素：</p>
+
+<pre class="brush: html">&lt;canvas id="canvas"&gt;&lt;/canvas&gt;
+</pre>
+
+<p>你可以使用下面的代码得到一个 {{domxref("TextMetrics")}} 对象：</p>
+
+<pre class="brush: js;highlight:[5]">var canvas = document.getElementById("canvas");
+var ctx = canvas.getContext("2d");
+
+var text = ctx.measureText("foo"); // TextMetrics object
+text.width; // 16;
+</pre>
+
+<h2 id="规范描述">规范描述</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('HTML WHATWG', "scripting.html#dom-textmetrics-width", "TextMetrics.width")}}</td>
+   <td>{{Spec2('HTML WHATWG')}}</td>
+   <td> </td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器兼容性">浏览器兼容性</h2>
+
+<div>{{CompatibilityTable}}</div>
+
+<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>4.0</td>
+   <td>{{CompatGeckoDesktop("1.8")}}</td>
+   <td>9.0</td>
+   <td>9.0</td>
+   <td>3.1</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+  <tr>
+   <th>Feature</th>
+   <th>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>2.1</td>
+   <td>{{CompatGeckoMobile("1.8")}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>10.0</td>
+   <td>3.2</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<h2 id="参见">参见</h2>
+
+<ul>
+ <li>{{domxref("TextMetrics")}}</li>
+</ul>
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