Python 标准库

ElementTree

2022-05-26

import:: import xml.etree.ElementTree as ET

doc:: xml.etree.ElementTree

解析

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import xml.etree.ElementTree as ET
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# 解析 xml 文件
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tree = ET.parse('country_data.xml')
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# 解析字符串
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str= '<?xml version="1.0" encoding="UTF-8"?><PTZData><pan>0</pan><tilt>0</tilt></PTZData>'
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tree = ET.fromstring(str)

当 version: “1.0” 会报错 xml.etree.ElementTree.ParseError: XML declaration not well-formed，此时改为 ==version=“1.0”== 即可。

ET.dump(<xml) : 输出 XML

获取

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# 获取标签
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tree.tag
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# 获取文本
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tree.text

构造

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import xml.etree.ElementTree as ET
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zero = ET.Element('root') # 标签名
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one = ET.SubElement(zero, 'num') # 节点名
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one.text = '42' # 为节点赋值
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head = '<?xml version="1.0" encoding="UTF-8"?>'
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head += ET.tostring(zero, encoding='UTF-8').decode('utf-8')
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# 返回 <?xml version="1.0" encoding="UTF-8"?><root><num>42</num></root>
# Python
# Library
# XML