python處理xml檔案

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參考：https://docs.python.org/2/library/xml.etree.elementtree.html

例子：

<?xml version="1.0"?><data>    <country name="Liechtenstein">        <rank>1</rank>        <year>2008</year>        <gdppc>141100</gdppc>        <neighbor name="Austria" direction="E"/>        <neighbor name="Switzerland" direction="W"/>    </country>    <country name="Singapore">        <rank>4</rank>        <year>2011</year>        <gdppc>59900</gdppc>        <neighbor name="Malaysia" direction="N"/>    </country>    <country name="Panama">        <rank>68</rank>        <year>2011</year>        <gdppc>13600</gdppc>        <neighbor name="Costa Rica" direction="W"/>        <neighbor name="Colombia" direction="E"/>    </country></data>

1、解析xml檔案

>>> os.getcwd()‘D:\\workspace\\testpython‘>>> import xml.etree.ElementTree as ET>>> tree = ET.parse(‘test.xml‘)>>> root = tree.getroot()>>> print root<Element ‘data‘ at 0x1d2a8b0>>>> print tree<xml.etree.ElementTree.ElementTree object at 0x01D2A9D0>>>> root.tag‘data‘>>> root.attrib{}>>> #遍曆子節點>>> for child in root:    print child.tag,child.attrib    country {‘name‘: ‘Liechtenstein‘}country {‘name‘: ‘Singapore‘}country {‘name‘: ‘Panama‘}>>> root[0].text‘\n        ‘>>> root[0][1].text‘2008‘>>> root[1][3].text>>> root[1][2].text‘59900‘

2、尋找元素

>>> #查詢元素>>> for neighbor in root.iter(‘neighbor‘):    print neighbor.attrib    {‘direction‘: ‘E‘, ‘name‘: ‘Austria‘}{‘direction‘: ‘W‘, ‘name‘: ‘Switzerland‘}{‘direction‘: ‘N‘, ‘name‘: ‘Malaysia‘}{‘direction‘: ‘W‘, ‘name‘: ‘Costa Rica‘}{‘direction‘: ‘E‘, ‘name‘: ‘Colombia‘}>>> root.iter(‘neighbor‘)<generator object iter at 0x01D3CF30>>>> root.findall(‘country‘)[<Element ‘country‘ at 0x1d2aa90>, <Element ‘country‘ at 0x1d2ad30>, <Element ‘country‘ at 0x1d2af10>]>>> for country in root.findall(‘country‘): #element.findall()查詢當前元素的子項目    rank=country.find(‘rank‘).text  #element.find()查詢指定標籤的第一個子項目，element.text擷取元素的內容    name=country.get(‘name‘)  #element.get()擷取元素的屬性值    print name,rank    Liechtenstein 1Singapore 4Panama 68

3、修改xml檔案

 

python處理xml檔案