点击复制文本

点击按钮，进行文本复制操作。实现这个功能需要二点；

 一：用window.getSelection().selectAllChildren(“”)获取要复制的内容 

 二：用document.execCommand ("Copy");进行复制操作

关键代码

 window.getSelection().selectAllChildren(val);document.execCommand ("Copy");

 

HTML

<p id="copyWeChat">要复制的内容</p>

<span οnclick="copyFn('copyWeChat')">复制</span>

 

JS

<script>function copyFn(id){var val = document.getElementById(id);window.getSelection().selectAllChildren(val);document.execCommand ("Copy");alert("复制成功")}</script>