如何获取data-id属性？

var element = document.querySelector('[data-id="your-data-id"]');
var dataId = element.getAttribute('data-id');

var dataId = $('[data-id="your-data-id"]').data('id');

from bs4 import BeautifulSoup

html = '<div data-id="your-data-id"></div>'
soup = BeautifulSoup(html, 'html.parser')
element = soup.find('div', {'data-id': 'your-data-id'})
data_id = element['data-id']

$html = '<div data-id="your-data-id"></div>';
$doc = new DOMDocument();
$doc->loadHTML($html);
$xpath = new DOMXPath($doc);
$element = $xpath->query('//div[@data-id="your-data-id"]')->item(0);
$dataId = $element->getAttribute('data-id');

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;

public class Main {
    public static void main(String[] args) {
        String html = "<div data-id=\"your-data-id\"></div>";
        Document doc = Jsoup.parse(html);
        Element element = doc.selectFirst("div[data-id=your-data-id]");
        String dataId = element.attr("data-id");
    }
}