const regex = /<style>[\s\S]*<\/style>/g;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('<style>[\\s\\S]*<\\\/style>', 'g')
const str = `<!--
* @Descripttion: 打开koroFileHeader查看配置 进行设置: https://github.com/OBKoro1/koro1FileHeader/wiki/%E9%85%8D%E7%BD%AE
* @version: April 2021 (version 1.56)
* @Author: ZhangKe
* @Date: 2022-04-15 11:12:09
* @LastEditors: ZhangKe
* @LastEditTime: 2022-04-15 11:20:25
* @FilePath: \\19_Node.js\\13_clocl时钟案例\\index.html
-->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>index首页</title>
<style>
html,
body {
margin: 0;
padding: 0;
height: 100%;
background-image: linear-gradient(to bottom right, red, gold);
}
.box {
width: 400px;
height: 250px;
background-color: rgba(255, 255, 255, 0.6);
border-radius: 6px;
position: absolute;
left: 50%;
top: 40%;
transform: translate(-50%, -50%);
box-shadow: 1px 1px 10px #fff;
text-shadow: 0px 1px 30px white;
display: flex;
justify-content: space-around;
align-items: center;
font-size: 70px;
user-select: none;
padding: 0 20px;
/* 盒子投影 */
-webkit-box-reflect: below 0px -webkit-gradient(linear, left top, left bottom, from(transparent), color-stop(0%, transparent), to(rgba(250, 250, 250, .2)));
}
</style>
</head>
<body>
<div class="box">
<div id="HH">00</div>
<div>:</div>
<div id="mm">00</div>
<div>:</div>
<div id="ss">00</div>
</div>
<script>
window.addEventListener('load', function (evt) {
// 定时器，每隔 1 秒执行 1 次
setInterval(() => {
var dt = new Date()
var HH = dt.getHours()
var mm = dt.getMinutes()
var ss = dt.getSeconds()
// 为页面上的元素赋值
document.querySelector('#HH').innerHTML = padZero(HH)
document.querySelector('#mm').innerHTML = padZero(mm)
document.querySelector('#ss').innerHTML = padZero(ss)
}, 1000)
});
// 补零函数
function padZero(n) {
return n > 9 ? n : '0' + n
}
</script>
</body>
</html>`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
while ((m = regex.exec(str)) !== null) {
// This is necessary to avoid infinite loops with zero-width matches
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions