1. <body>
    2.     <ul>
    3.         <li>1.xxxx</li>
    4.         <li>2.xxxx</li>
    5.         <li>3.xxxx</li>
    6.         <li>4.xxxx</li>
    7.         <li>5.xxxx</li>
    8.     </ul>
    10.     <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
    11.     <script>
    12.         //把li的事件托管到ul上
    13.         $('ul').on('click', 'li', function () {
    14.             //console.log(event.target);
    15.             console.log(this);
    16.         })
    17.     </script>
    18. </body>