問(wèn)題描述

第一個(gè)situation：tag內(nèi)有l(wèi)ink

from lxml import etree node = etree.fromstring(’<a xml = ’www.www.com’><c>bum</c></a>’)print node.findtext(’c’,default = ’what happened?’)

第二個(gè)situation：所求text所在tag上一級(jí)tag無(wú)content

from lxml import etree node = etree.fromstring(’<a><b><c>bum</c></b></a>’)print node.findtext(’c’, default = ’what happened?’)

以上兩個(gè)situation所返回的結(jié)果都是‘None’

成功的situation

from lxml import etree node = etree.fromstring(’<a><c>bum</c></a>’)print node.findtext(’c’)

想問(wèn)一下這兩個(gè)問(wèn)題應(yīng)該怎么解決？

問(wèn)題解答

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