html运行实例（js_match_regexp

代码示例：（标识：js_match_regexp_1）

<!DOCTYPE html>
<html>
<body>

<h2>JavaScript 字符串搜索</h2>

<p>在字符串中搜索 "ain"：</p>

<p id="demo"></p>

<script>
let text = "The rain in SPAIN stays mainly in the plain"; 
document.getElementById("demo").innerHTML = text.match(/ain/g);
</script>

</body>
</html>