<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
body {
font-family: "Microsoft YaHei", serif;
}
body, dl, dd, p, h1, h2, h3, h4, h5, h6 {
margin: 0;
}
ol, ul, li {
margin: 0;
padding: 0;
list-style: none;
}
img {
border: none
}
</style>
</head>
<body>
<div id="wrap"></div>
<script>
// 两种定义方式
// let reg = /匹配规则/;
//
// reg.test(str)
let a = "匹配的东西";
let reg = new RegExp(a);
// 但是
let r = /\d+/g;
let Reg = new RegExp("\\d+","g")
</script>
</body>
</html>
Python3Turtle