<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <script src="../js/jquery-3.6.1.min.js"></script> <style> .change{ background:green; color:white; } </style> </head> <body> <input type="text" id="t"> <input type="button" value="search" id="search"> <ul> <li>one</li> <li>two</li> <li>three</li> <li>four</li> <li>five</li> <li>i'm five,i want to sleep</li> </ul> <script> $(function (){ $("#search").click(function (){ var txt = $("#t").val() //获取编辑框的内容 console.log(txt) var li = $("li") //索取所有li标签的集合 console.log(li) for (let i = 0;i<li.length;i++) { console.log(li[i]) let text = li[i].innerText //获取li标签文本内容 console.log(text) li[i].className=""//清除样式 if(text.search(txt)!==-1){//判断编辑框的内容是否是li标签内容的一部分 li[i].className="change"//更改样式 } } }) }) </script> </body> </html>
