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author | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
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committer | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
commit | 33058f2b292b3a581333bdfb21b8f671898c5060 (patch) | |
tree | 51c3e392513ec574331b2d3f85c394445ea803c6 /files/zh-cn/web/api/window/scrollby/index.html | |
parent | 8b66d724f7caf0157093fb09cfec8fbd0c6ad50a (diff) | |
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diff --git a/files/zh-cn/web/api/window/scrollby/index.html b/files/zh-cn/web/api/window/scrollby/index.html new file mode 100644 index 0000000000..fea5cc42e3 --- /dev/null +++ b/files/zh-cn/web/api/window/scrollby/index.html @@ -0,0 +1,84 @@ +--- +title: Window.scrollBy() +slug: Web/API/Window/scrollBy +tags: + - 全局方法 +translation_of: Web/API/Window/scrollBy +--- +<p>{{ APIRef() }}</p> + +<h2 id="Summary" name="Summary">摘要</h2> + +<p>在窗口中按指定的偏移量滚动文档。</p> + +<h2 id="Syntax" name="Syntax">语法</h2> + +<pre>window.scrollBy(<em>x-coord</em>, <em>y-coord</em>); +window.scrollBy(<em>options</em>) +</pre> + +<h3 id="Parameters" name="Parameters">参数</h3> + +<ul> + <li><code>X</code> 是水平滚动的偏移量,单位:像素。</li> + <li><code>Y</code> 是垂直滚动的偏移量,单位:像素。</li> +</ul> + +<p>正数坐标会朝页面的右下方滚动,负数坐标会滚向页面的左上方。</p> + +<ul> + <li><code>options</code> 是一个包含三个属性的对象:</li> +</ul> + +<ol> + <li><code><em>top</em></code> 等同于 <code><em>y-coord</em></code></li> + <li><code><font face="consolas, Liberation Mono, courier, monospace">left</font></code> 等同于 <code>x<em>-coord</em></code></li> + <li><code><em>behavior</em></code><em> 表示滚动行为,支持参数:<code>smooth</code> (平滑滚动),<code>instant</code> (瞬间滚动),默认值 <code>auto</code>,效果等同于 <code>instant</code></em></li> +</ol> + +<h2 id="Example" name="Example">例子</h2> + +<p>向下滚动一页:</p> + +<pre><code>window.scrollBy(0, window.innerHeight);</code> +</pre> + + + +<p>向上滚动一页:</p> + +<pre><code>window.scrollBy(0, -window.innerHeight);</code></pre> + + + +<p>使用 options:</p> + +<pre><code>window.scrollBy({ + top: 100, + left: 100, + behavior: "smooth" +});</code> +</pre> + +<h2 id="Notes" name="Notes">注意</h2> + +<p><a href="/en-US/docs/DOM/Window.scrollBy">window.scrollBy</a> 滚动指定的距离,而 <a href="/en-US/docs/DOM/Window.scroll">window.scroll</a> 滚动至文档中的绝对位置。另外还有 <a href="/en-US/docs/DOM/Window.scrollByLines">window.scrollByLines</a>, <a href="/en-US/docs/DOM/Window.scrollByPages">window.scrollByPages</a></p> + +<h2 id="Specification" name="Specification">规范</h2> + +<table class="standard-table"> + <thead> + <tr> + <th scope="col">规范</th> + <th scope="col">状态</th> + <th scope="col">说明</th> + </tr> + </thead> + <tbody> + <tr> + <td>{{ SpecName('CSSOM View', '#dom-window-scrollby', 'window.scrollBy()') }}</td> + <td>{{ Spec2('CSSOM View') }}</td> + <td>初次定义</td> + </tr> + </tbody> +</table> |