--- title: GlobalEventHandlers.ontouchstart slug: Web/API/GlobalEventHandlers/ontouchstart translation_of: Web/API/GlobalEventHandlers/ontouchstart --- <div>{{ApiRef("HTML DOM")}}</div> <p>{{event("touchstart")}} 事件的{{domxref("GlobalEventHandlers","全局事件处理器")}}.</p> <p>{{SeeCompatTable}}</p> <div class="note"> <p><strong>备注:</strong> 这个属性尚未正式标准化。它被定义在{{SpecName('Touch Events 2')}} {{Spec2('Touch Events 2')}} 规格中,但并没有被定义在 {{SpecName('Touch Events')}} {{Spec2('Touch Events')}}中。这个属性尚未被完成实现。</p> </div> <h2 id="Syntax" name="Syntax">语法</h2> <pre class="eval">var startHandler = someElement.ontouchstart; </pre> <h3 id="Return_Value" name="Return_Value">返回值</h3> <dl> <dt><code>startHandler</code></dt> <dd><code>someElement的touchstart事件处理函数</code>.</dd> </dl> <h2 id="例子">例子</h2> <p>这个例子展示了使用ontouchstart属性的两种方法。</p> <pre class="brush: js"><html> <script> function startTouch(ev) { // 处理事件 } function init() { var el=document.getElementById("target1"); el.ontouchstart = startTouch; } </script> <body onload="init();"> <div id="target1"> Touch me ... </div> <div id="target2" ontouchstart="startTouch(event)"> Touch me ... </div> </body> </html> </pre> <h2 id="规范">规范</h2> <table class="standard-table"> <tbody> <tr> <th scope="col">规范</th> <th scope="col">状态</th> <th scope="col">评论</th> </tr> <tr> <td>{{SpecName('Touch Events 2','#widl-GlobalEventHandlers-ontouchstart')}}</td> <td>{{Spec2('Touch Events 2')}}</td> <td>Non-stable version.</td> </tr> </tbody> </table> <h2 id="浏览器兼容性">浏览器兼容性</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>{{CompatChrome(18.0)}}</td> <td>{{CompatUnknown}}</td> <td>{{CompatUnknown}}</td> <td>{{CompatUnknown}}</td> <td>{{CompatUnknown}}</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>{{CompatUnknown}}</td> <td>{{CompatVersionUnknown}}</td> <td>{{CompatVersionUnknown}}</td> <td>{{CompatUnknown}}</td> <td>{{CompatUnknown}}</td> <td>{{CompatUnknown}}</td> <td>{{CompatUnknown}}</td> <td>{{CompatUnknown}}</td> </tr> </tbody> </table> </div> <h2 id="相关链接">相关链接</h2> <ul> <li>{{ event("touchstart") }}</li> </ul>