<!DOCTYPE html>
<html>
<title>编程狮(w3cschool.cn)</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://7npmedia.w3cschool.cn/w3.css">
<body>
<div class="w3-container">
<h2>过滤器列表</h2>
<p>在输入字段中搜索名称.</p>
<input class="w3-input w3-border w3-padding" type="text" placeholder="搜索姓名.." id="myInput" onkeyup="myFunction()">
<ul class="w3-ul w3-margin-top" id="myUL">
<li>Adele</li>
<li>Agnes</li>
<li>Billy</li>
<li>Bob</li>
<li>Calvin</li>
<li>Christina</li>
<li>Cindy</li>
</ul>
</div>
<script>
function myFunction() {
var input, filter, ul, li, a, i;
input = document.getElementById("myInput");
filter = input.value.toUpperCase();
ul = document.getElementById("myUL");
li = ul.getElementsByTagName("li");
for (i = 0; i < li.length; i++) {
txtValue = li[i].textContent || li[i].innerText;
if (txtValue.toUpperCase().indexOf(filter) > -1) {
li[i].style.display = "";
} else {
li[i].style.display = "none";
}