js 获取页面的xpath

function getXPath(element) {
    if (element.id !== '') {
        return 'id("' + element.id + '")';
    }
    if (element === document.body) {
        return element.tagName;
    }

    let ix = 0;
    let siblings = element.parentNode.childNodes;
    for (let i = 0; i < siblings.length; i++) {
        let sibling = siblings[i];
        if (sibling === element) {
            return getXPath(element.parentNode) + '/' + element.tagName.toLowerCase() + '[' + (ix + 1) + ']';
        }
        if (sibling.nodeType === 1 && sibling.tagName === element.tagName) {
            ix++;
        }
    }
}

// 使用示例
let targetElement = document.querySelector('.target-class');
let xpath = getXPath(targetElement);
console.log(xpath); // 输出该元素的XPath