用于从字符串中删除给定(x)HTML标记的正则表达式

/(<[^>]*\<)\1([^<>]*>)>/g

import re

html_string = "<h1>Hello</h1><i>world</i><div>HTML tags</div>"
html_without_tags = re.sub(r'(<[^>]*\<)\1([^<>]*>)>', '', html_string)
print(html_without_tags)

import java.util.regex.Pattern;
import java.util.regex.Matcher;

public class Main {
    public static void main(String[] args) {
        String htmlString = "<h1>Hello</h1><i>world</i><div>HTML tags</div>";
        Pattern pattern = Pattern.compile("(<[^>]*\<)\\1([^<>]*>)>", Pattern.DOTALL);
        Matcher matcher = pattern.matcher(htmlString);
        String htmlWithoutTags = matcher.replaceAll("");
        System.out.println(htmlWithoutTags);
    }
}

const htmlString = "<h1>Hello</h1><i>world</i><div>HTML tags</div>";
const htmlWithoutTags = htmlString.replace(/<[^>]*\<\1[^>]*>/g, '');
console.log(htmlWithoutTags);