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<!DOCTYPE html>
<html>
<body>
<h1>JavaScript 正则表达式</h1>
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<h2>d 修饰符</h2>
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<p>匹配所有以 aa 或 bb 开头或结尾的字符串：</p>
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<p id="demo"></p>
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<script>
let text = "aaaabb"; 
let result = text.match(/(aa)(bb)/d);
document.getElementById("demo").innerHTML = result;
</script>
​
</body>
</html>
​