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Diffstat (limited to 'files/zh-cn/web/api/mouseevent/clientx/index.html')
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diff --git a/files/zh-cn/web/api/mouseevent/clientx/index.html b/files/zh-cn/web/api/mouseevent/clientx/index.html new file mode 100644 index 0000000000..009b338b12 --- /dev/null +++ b/files/zh-cn/web/api/mouseevent/clientx/index.html @@ -0,0 +1,85 @@ +--- +title: MouseEvent.clientX +slug: Web/API/MouseEvent/clientX +tags: + - API + - DOM + - DOM Events +translation_of: Web/API/MouseEvent/clientX +--- +<p>{{APIRef("DOM Events")}}</p> + +<p><strong><code>MouseEvent.clientX</code></strong> 是只读属性, 它提供事件发生时的应用客户端区域的水平坐标 (与页面坐标不同)。例如,不论页面是否有水平滚动,当你点击客户端区域的左上角时,鼠标事件的 <code>clientX</code> 值都将为 0 。最初这个属性被定义为长整型(long integer),如今 <strong>CSSOM </strong>视图模块将其重新定义为双精度浮点数(double float)。你可以查阅浏览器兼容性部分的文档来进一步了解有关信息。</p> + +<h2 id="语法">语法</h2> + +<pre class="syntaxbox"><code> +var <em>x</em> = <em>instanceOfMouseEvent</em>.clientX +</code></pre> + +<h3 id="返回值"><code>返回值</code></h3> + +<p>被 CSSOM View Module 重新定义为一个 <code>double</code> 类型的浮点值. 原来这个属性是被定义为一个 <code>long</code> 整数. 可以在 "浏览器兼容性" 那里查看详细内容.</p> + +<h2 id="Example" name="Example">示例</h2> + +<pre class="brush: html"><!DOCTYPE html> +<html> + <head> + <title>clientX/clientY example</title> + + <script> + function showCoords(evt){ + alert( + "clientX value: " + evt.clientX + "\n" + + "clientY value: " + evt.clientY + "\n" + ); + } + </script> + </head> + <body onmousedown="showCoords(event)"> + <p>To display the mouse coordinates click anywhere on the page.</p> + </body> +</html> +</pre> + +<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('CSSOM View','#dom-mouseevent-clientx', 'clientX')}}</td> + <td>{{Spec2('CSSOM View')}}</td> + <td>Redefines {{domxref("MouseEvent")}} from <code>long</code> to <code>double</code>.</td> + </tr> + <tr> + <td>{{SpecName('DOM3 Events','#widl-MouseEvent-clientX','MouseEvent.clientX')}}</td> + <td>{{Spec2('DOM3 Events')}}</td> + <td>No change from {{SpecName('DOM2 Events')}}.</td> + </tr> + <tr> + <td>{{SpecName('DOM2 Events','#Events-MouseEvent','MouseEvent.clientX')}}</td> + <td>{{Spec2('DOM2 Events')}}</td> + <td>Initial definition.</td> + </tr> + </tbody> +</table> + +<h2 id="Browser_compatibility" name="Browser_compatibility">浏览器兼容性</h2> + + + +<p>{{Compat("api.MouseEvent.clientX")}}</p> + +<h2 id="See_also" name="See_also">相关</h2> + +<ul> + <li><code><code>{{ domxref("MouseEvent") }}</code></code></li> + <li><code><code>{{domxref("event.clientY","clientY")}}</code></code></li> + <li><code><code>{{domxref("event.screenX","screenX")}} / {{domxref("event.screenY","screenY")}}</code></code></li> +</ul> |
