斯蒂芬大帝
您可以使用DOMParserlet str = `<p>I have a dog</p><p>I have a cat too</p><p>I have a lion too</p>`let parser = new DOMParser()let parsed = parser.parseFromString(str,'text/html')let final = [...parsed.getElementsByTagName('p')].map(e=> e.textContent).join('<br/>')console.log(final)注意:- Regex 不是 HTML 解析的合适工具,但如果只是为了学习目的,您想看看如何使用 regexlet str = `<p>I have a dog</p><p>I have a cat too</p><p>I have a lion too</p>`let op = str.split('\n').map(e=>e.replace(/<\/?p>/g,'')).join('<br/>')console.log(op)