发现使用lxml或beautifulsoup python

Question

我是新手，你能指导我如何从使用python lxml或beautifulsoup的html获得价格（＆＃34; 299.00＆＃34;）？

附加HTML CODE图像

Click to See Html code image

    from lxml import html
    import requests

    url="https://world.taobao.com/item/537221576985.htm?fromSite=main&spm=a21ct.7779917.1441024229133.8.AvoEs0"
    page=requests.get(url)
    tree=html.fromstring(page.text)


    price=tree.xpath('//strong[@class="tb-rmb-num"]/text()')

    print(price)