Python XML 建筑

Question

我正在尝试从 python 构建一个 xml，如何在子元素中循环？我一直在尝试以所需的格式获取它，但无法弄清楚如何

我得到的输出是这样的：

b'<member x0="28.921" y0="710.377" text="1. Case gdfh "><sub/></member>'
b'<member><sub x0="54.721" y0="695.792" text="Version "> 0</sub></member>'
b'<member><sub x0="54.721" y0="688.112" text="AER Number "> 4735986</sub></member>'
b'<member><sub x0="54.721" y0="680.792" text="Initial Unit "> SBFBKJSF</sub></member>'
b'<member x0="28.921" y0="561.937" text="2. Patient"><sub/></member>'
b'<member><sub x0="54.721" y0="510.697" text="Patient Information"></sub></member>'
b'<member><sub x0="54.721" y0="496.112" text="Age "> 60 Years</sub></member>'
b'<member><sub x0="54.721" y0="488.432" text="Height "> 171 Centimeter</sub></member>'

我想要的输出是这样的：

b'
<member x0="28.921" y0="710.377" text="1. Case gdfh ">
    <sub x0="54.721" y0="695.792" text="Version "> 0</sub>
    <sub x0="54.721" y0="688.112" text="AER Number "> 4735986</sub>
    <sub x0="54.721" y0="680.792" text="Initial Unit "> SBFBKJSF</sub>
</member>
<member x0="28.921" y0="561.937" text="2. Patient">
    <sub x0="54.721" y0="510.697" text="Patient Information"></sub>
    <sub x0="54.721" y0="496.112" text="Age "> 60 Years</sub>
    <sub x0="54.721" y0="488.432" text="Height "> 171 Centimeter</sub>
</member>
'

我写的代码是这样的：

这里，'st'是对象列表

from lxml import etree
import xml.etree.ElementTree as xml


root = etree.Element('root')

for j in st:
    member = etree.SubElement(root, 'member')
    submbr = etree.SubElement(member, 'sub')

    if j.x0 == '28.921':
        root.append(member)
        member.append(submbr)
        member.attrib['x0'] = j.x0
        member.attrib['y0'] = j.y0
        member.attrib['text'] = j.text[0]
        member.text = j.text[1]
    else:
        submbr.attrib['x0'] = j.x0
        submbr.attrib['y0'] = j.y0
        submbr.attrib['text'] = j.text[0]
        submbr.text = j.text[1]



    out = etree.tostring(member)
    print(out)

数据结构，循环时的 st 列表具有这些值

TEXT                   x0       y0 
['1. Case gdfh ', ''] 28.921 , 710.377
['Version ', ' 0', ''] 54.721 , 695.792
['AER Number ', ' 4735986', ''] 54.721 , 688.112
['Initial Unit ', 'SBFBKJSF ', ''] 54.721 , 680.792
['2. Patient', ''] 28.921 , 561.937
['Patient Information', ''] 54.721 , 510.697
['Age ', ' 60 Years', ''] 54.721 , 496.112
['Height ', ' 171 Centimeter', ''] 54.721 , 488.432

Answer 1

每当 x0 的值等于 '28.921' 时，您都需要一个新的 member，并且在任何其他情况下，您想要向任何 [=22] 添加一个子成员=]current member 是 - 除非没有当前成员，当 st 中的第一项不是 x0 == '28.921'.

时可能会发生这种情况

from lxml import etree

class betterdict(dict):
    def __getattr__(self, key):
        return self.get(key)

st = [
    betterdict({'text': ['1. Case gdfh ', ''],              'x0': '28.921', 'y0': '710.377'}),
    betterdict({'text': ['Version ', ' 0', ''],             'x0': '54.721', 'y0': '695.792'}),
    betterdict({'text': ['AER Number ', ' 4735986', ''],    'x0': '54.721', 'y0': '688.112'}),
    betterdict({'text': ['Initial Unit ', 'SBFBKJSF ', ''], 'x0': '54.721', 'y0': '680.792'}),
    betterdict({'text': ['2. Patient', ''],                 'x0': '28.921', 'y0': '561.937'}),
    betterdict({'text': ['Patient Information', ''],        'x0': '54.721', 'y0': '510.697'}),
    betterdict({'text': ['Age ', ' 60 Years', ''],          'x0': '54.721', 'y0': '496.112'}),
    betterdict({'text': ['Height ', ' 171 Centimeter', ''], 'x0': '54.721', 'y0': '488.432'}),
]

root = etree.Element('root')
member = None

for j in st:
    if j.x0 == '28.921':
        member = etree.SubElement(root, 'member')
        member.attrib['x0'] = j.x0
        member.attrib['y0'] = j.y0
        member.attrib['text'] = j.text[0]
    elif member is not None:
        submbr = etree.SubElement(member, 'sub')
        submbr.attrib['x0'] = j.x0
        submbr.attrib['y0'] = j.y0
        submbr.attrib['text'] = j.text[0]
        submbr.text = j.text[1]

out = etree.tostring(root)
print(out)

准确打印您想要的内容（为了便于阅读而格式化）

<root>
  <member x0="28.921" y0="710.377" text="1. Case gdfh ">
    <sub x0="54.721" y0="695.792" text="Version "> 0</sub>
    <sub x0="54.721" y0="688.112" text="AER Number "> 4735986</sub>
    <sub x0="54.721" y0="680.792" text="Initial Unit ">SBFBKJSF </sub>
  </member>
  <member x0="28.921" y0="561.937" text="2. Patient">
    <sub x0="54.721" y0="510.697" text="Patient Information"></sub>
    <sub x0="54.721" y0="496.112" text="Age "> 60 Years</sub>
    <sub x0="54.721" y0="488.432" text="Height "> 171 Centimeter</sub>
  </member>
</root>

Python XML 建筑

Python XML building

python

lxml