<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> </head> <body> <div class="u_div"> <span>微信</span> <div id="wxnum">123456</div> <a href="javascript:void(0);" id="copyBtn">复制</a> </div> </body> <script src="https://code.jquery.com/jquery-3.1.1.min.js"></script> <script type="text/javascript"> function copyArticle(event) { const range = document.createRange(); range.selectNode(document.getElementById(\'wxnum\')); const selection = window.getSelection(); if(selection.rangeCount > 0) selection.removeAllRanges(); selection.addRange(range); document.execCommand(\'copy\'); alert("复制成功!"); } document.getElementById(\'copyBtn\').addEventListener(\'click\', copyArticle, false); </script> </html>