我创建正则表达式 /(10?|10{2,})/g 来查找 1,10 或 100,1000...但下面的代码不会返回预期结果。我不知道我哪里错了，请帮助我！
<!DOCTYPE html>
<html>
<body>
<h2>JavaScript Regular Expressions</h2>
<p>Do a global search for a "1", followed by zero or one "0" characters:</p>
<p id="demo"></p>
<script>
let text = "1, 10, 100 or 1000?";
let result = text.match(/(10?|10{2,})/g);
//should return 1,10,100,1000 but instead return 1,10,10,10
document.getElementById("demo").innerHTML = result;
</script>
</body>
</html>您的问题是
10?1...<!DOCTYPE html>
<html>
<body>
<h2>JavaScript Regular Expressions</h2>
<p>Do a global search for a "1", followed by zero or one "0" characters:</p>
<p id="demo"></p>
<script>
let text = "1, 10, 100 or 1000?";
let result = text.match(/(10{2,}|10?)/g);
//should return 1,10,100,1000 but instead return 1,10,10,10
document.getElementById("demo").innerHTML = result;
</script>
</body>
</html>或者更好的是，只需将正则表达式简化为
10*<!DOCTYPE html>
<html>
<body>
<h2>JavaScript Regular Expressions</h2>
<p>Do a global search for a "1", followed by zero or one "0" characters:</p>
<p id="demo"></p>
<script>
let text = "1, 10, 100 or 1000?";
let result = text.match(/(10*)/g);
//should return 1,10,100,1000 but instead return 1,10,10,10
document.getElementById("demo").innerHTML = result;
</script>
</body>
</html>