监听鼠标悬浮
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title></title> </head> <!-- <link href="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/4.6.1/css/bootstrap.min.css" rel="stylesheet"> --> <script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script> <body style="border: 1px solid red;margin: 4px;"> <table class="table table-bordered"> <caption></caption> <thead> <tr> <th></th> <th></th> <th></th> <th></th> </tr> </thead> <tbody> <tr> <td>ā</td> <td>á</td> <td>ǎ</td> <td>à</td> </tr> <tr> <td>ō</td> <td>ó</td> <td>ǒ</td> <td>ò</td> </tr> <tr> <td>ē</td> <td>é</td> <td>ě</td> <td>è</td> </tr> <tr> <td>ī</td> <td>í</td> <td>ǐ</td> <td>ì</td> </tr> <tr> <td>ū</td> <td>ú</td> <td>ǔ</td> <td>ù</td> </tr> <tr> <td>ǖ</td> <td>ǘ</td> <td>ǚ</td> <td>ǜ</td> </tr> <tr> <td>ṉ</td> <td>ń</td> <td>ň</td> <td>ǹ</td> </tr> <tr> <td>ḡ</td> <td>ǵ</td> <td>ǧ</td> <td>ġ</td> </tr> <tr> <td>ṙ</td> <td>ŕ</td> <td>ř</td> <td>ṟ</td> </tr> </tbody> </table> </body> <script> $("td").hover(function () { $("td").css("background-color", "white"); $(this).click(function () { var ret = $(this).text(); navigator.clipboard.writeText(ret); $(this).css("background-color", "green"); }); }); </script> </html>