写了个把 xml 的 tag 解析目录树的小脚本, 各位大佬提点意见 - V2EX
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xchaoinfo

写了个把 xml 的 tag 解析目录树的小脚本, 各位大佬提点意见

  •  
  •   xchaoinfo Jan 21, 2021 1649 views
    This topic created in 1924 days ago, the information mentioned may be changed or developed.

    求问, 各位大佬有没有更好的实现方式

     """解析 xml 的结构为目录树,能够快速的对 xml 的结构有基本的了解。这也是 nonlocal 新关键字的一个 demo """ from io import BytesIO from lxml import etree def init_xpath(page_source: str): """page_source 的 xml 文本转为可以解析的 etree 对象 """ xml_root = etree.parse(BytesIO(page_source.encode())) return xml_root def fmt(fg): """格式化输出""" print("-" * fg, end="") def tree_xml(root, result, flags=0, step=2): result.append((flags, root)) def tree(root): nonlocal flags ch_root = root.getchildren() if ch_root: flags += step for ch in ch_root: tree_xml(ch, result, flags) else: pass tree(root) return result def main(): data = """ <xml> <aa> <bb></bb> <cc> <a11></a11> <a22> <mue></mue> </a22> </cc> <dd></dd> </aa> <ee> <ff></ff> </ee> </xml> """ xml_root = init_xpath(data) res_xml = tree_xml(xml_root.getroot(), []) for fg, _root in res_xml: fmt(fg) print(_root.tag) if __name__ == '__main__': main() 

    执行结果是这样的

    xml --aa ----bb ----cc ------a11 ------a22 --------mue ----dd --ee ----ff 
    2 replies    2021-01-22 16:27:29 +08:00
    jalena
        1
    jalena  
       Jan 22, 2021
    根据我这么些年的开发经验,是否有一个 getElement method ??
    xchaoinfo
        2
    xchaoinfo  
    OP
       Jan 22, 2021
    @jalena 并不是单纯的获取所有的 Elements, 还要层级结构,便于格式化的输出
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