--- title: Selection.toString() slug: Web/API/Selection/toString translation_of: Web/API/Selection/toString --- <div> <div> <div>{{ ApiRef("DOM") }}{{SeeCompatTable}}</div> </div> </div> <p><strong><code>Selection.toString()</code></strong>返回代表当前selection对象的字符串,例如当前选择的文本文字.</p> <h2 id="Syntax" name="Syntax">语法</h2> <pre class="syntaxbox"><em>str</em> =<em> sel</em>.toString() </pre> <h3 id="返回值">返回值</h3> <ul> <li><em><code>str</code></em> 代表selection的字符串.</li> </ul> <h3 id="Parameters" name="Parameters">参数</h3> <p><em>无.</em></p> <h2 id="Description" name="Description">描述</h2> <p>此方法返回当前被选中的文本文字.</p> <p>在<a href="en/JavaScript">JavaScript</a>中, 当selection对象作为字符串类型使用时,此方法会被自动调用:</p> <pre class="brush: js">alert(window.getSelection()) // 被调用时 alert(window.getSelection().toString()) // 真实情况 </pre> <h2 id="相关规范">相关规范</h2> <table class="standard-table"> <tbody> <tr> <th scope="col">规范</th> <th scope="col">状态</th> <th scope="col">备注</th> </tr> <tr> <td>{{SpecName('HTML Editing', '#dom-selection-stringifier', 'Selection.toString()')}}</td> <td>{{Spec2('HTML Editing')}}</td> <td>Initial definition</td> </tr> </tbody> </table> <h2 id="Browser_compatibility" name="Browser_compatibility">浏览器兼容性</h2> <div>{{CompatibilityTable}}</div> <div id="compat-desktop"> <table class="compat-table"> <tbody> <tr> <th>特性</th> <th>Chrome</th> <th>Firefox (Gecko)</th> <th>Internet Explorer</th> <th>Opera</th> <th>Safari (WebKit)</th> </tr> <tr> <td>基础特性</td> <td>{{CompatUnknown}}</td> <td>{{CompatVersionUnknown()}}</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>特性</th> <th>Android</th> <th>Firefox Mobile (Gecko)</th> <th>Firefox OS</th> <th>IE Phone</th> <th>Opera Mobile</th> <th>Safari Mobile</th> </tr> <tr> <td>基础特性</td> <td>{{CompatUnknown}}</td> <td>{{CompatVersionUnknown()}}</td> <td>1.0</td> <td>{{CompatUnknown}}</td> <td>{{CompatUnknown}}</td> <td>{{CompatUnknown}}</td> </tr> </tbody> </table> </div> <h2 id="See_also" name="See_also">参考</h2> <ul> <li>{{domxref("Selection")}}, Selection接口规范.</li> </ul>