let xianyuMobileObj = {
    init () {
        let curr_url = new URL(location.href);
        let id = curr_url.searchParams.get('id');
        if (!id) {
            console.log('log: detail info id not found.');
            return;
        }
        location.href = 'https://item.taobao.com/item.htm?id=' + id; // done !
    }
};