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authorPeter Bengtsson <mail@peterbe.com>2020-12-08 14:40:17 -0500
committerPeter Bengtsson <mail@peterbe.com>2020-12-08 14:40:17 -0500
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+---
+title: GlobalEventHandlers.ondrop
+slug: Web/API/GlobalEventHandlers/ondrop
+translation_of: Web/API/GlobalEventHandlers/ondrop
+---
+<div>drop 事件的全局处理函数</div>
+
+<h2 id="语法">语法</h2>
+
+<pre class="syntaxbox">var <var>dropHandler</var> = <var>targetElement</var>.ondrop;
+</pre>
+
+<h3 id="返回值">返回值</h3>
+
+<dl>
+ <dt><code>dropHandler</code></dt>
+ <dd>目标元素的 drop 事件处理函数。</dd>
+</dl>
+
+<h2 id="Example">Example</h2>
+
+<p>下面这个示例演示了 ondrop 属性的用法来指定 drop 事件的处理函数。</p>
+
+<pre class="brush: js">&lt;!DOCTYPE html&gt;
+&lt;html lang=en&gt;
+&lt;title&gt;Examples of using the ondrag Global Event Attribute&lt;/title&gt;
+&lt;meta content="width=device-width"&gt;
+&lt;style&gt;
+ div {
+ margin: 0em;
+ padding: 2em;
+ }
+ #source {
+ color: blue;
+ border: 1px solid black;
+ }
+ #target {
+ border: 1px solid black;
+ }
+&lt;/style&gt;
+&lt;/head&gt;
+&lt;script&gt;
+function drag_handler(ev) {
+ console.log("Drag");
+}
+
+function dragstart_handler(ev) {
+ console.log("dragStart");
+ ev.dataTransfer.setData("text", ev.target.id);
+}
+
+function drop_handler(ev) {
+ console.log("Drop");
+ ev.currentTarget.style.background = "lightyellow";
+
+ ev.preventDefault();
+ var data = ev.dataTransfer.getData("text");
+ ev.target.appendChild(document.getElementById(data));
+}
+
+function dragover_handler(ev) {
+ console.log("dragOver");
+ ev.preventDefault();
+}
+&lt;/script&gt;
+&lt;body&gt;
+&lt;h1&gt;Examples of &lt;code&gt;ondrag&lt;/code&gt;, &lt;code&gt;ondrop&lt;/code&gt;, &lt;code&gt;ondragstart&lt;/code&gt;, &lt;code&gt;ondragover&lt;/code&gt;&lt;/h1&gt;
+ &lt;div class="source"&gt;
+ &lt;p id="source" ondrag="drag_handler(event);" ondragstart="dragstart_handler(event);" draggable="true"&gt;
+ Select this element, drag it to the Drop Zone and then release the selection to move the element.&lt;/p&gt;
+ &lt;/div&gt;
+ &lt;div id="target" ondrop="drop_handler(event);" ondragover="dragover_handler(event);"&gt;Drop Zone&lt;/div&gt;
+&lt;/body&gt;
+&lt;/html&gt;
+</pre>
+
+<h2 id="Specifications">Specifications</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", "indices.html#ix-handler-ondrop", "ondrop")}}</td>
+ <td>{{Spec2("HTML WHATWG")}}</td>
+ <td> </td>
+ </tr>
+ <tr>
+ <td>{{SpecName("HTML5.1", "index.html#ix-handler-ondrop", "ondrop")}}</td>
+ <td>{{Spec2("HTML5.1")}}</td>
+ <td>Initial definition</td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_compatibility">Browser compatibility</h2>
+
+<p>{{CompatibilityTable}}</p>
+
+<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 (WebKit)</th>
+ </tr>
+ <tr>
+ <td>Basic support</td>
+ <td>4</td>
+ <td>{{CompatGeckoDesktop("1.9.1")}}</td>
+ <td>10</td>
+ <td>12</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>Android Webview</th>
+ <th>Chrome for Android</th>
+ <th>Firefox Mobile (Gecko)</th>
+ <th>Firefox OS</th>
+ <th>IE Mobile</th>
+ <th>Opera Mobile</th>
+ <th>Safari Mobile</th>
+ </tr>
+ <tr>
+ <td>Basic support</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatIE("10")}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<h2 id="See_also">See also</h2>
+
+<ul>
+ <li>{{event("drop")}}</li>
+</ul>