Python reading and writing XML files case sharing

This article mainly introduces relevant information about examples of reading and writing XML files in Python, examples of Python generating XML files and Python reading XML. Friends in need can refer to the following

Detailed explanation of Python Examples of reading and writing XML files

Python generates XML files

from xml.dom import minidom

# 生成XML文件方式
def generateXml():
  impl = minidom.getDOMImplementation()

  # 创建一个xml dom
  # 三个参数分别对应为 ：namespaceURI, qualifiedName, doctype
  doc = impl.createDocument(None, None, None)

  # 创建根元素
  rootElement = doc.createElement('Pythons')

  # 为根元素添加10个子元素
  for pythonId in range(10):
    # 创建子元素
    childElement = doc.createElement('python')
    # 为子元素添加id属性
    childElement.setAttribute('id', str(pythonId))

    # 将子元素追加到根元素中
    rootElement.appendChild(childElement)
    print(childElement.firstChild.data)

  # 将拼接好的根元素追加到dom对象
    doc.appendChild(rootElement)

  # 打开test.xml文件 准备写入
  f = open('test.xml', 'a')
  # 写入文件
  doc.writexml(f, addindent=' ', newl='\n')
  # 关闭
  f.close()

# 执行生成xml方法
generateXml()

python reads XML file

from xml.dom.minidom import parse

# 获取 python节点下得所有id属性
def getTagId():

  # 获取test.xml文档对象
  doc = parse("test.xml")

  for node in doc.getElementsByTagName("python"):
    # 获取标签ID属性
    value_str = node.getAttribute("id")
    # 打印输出
    print(value_str)

# 获取属性ID
getTagId()

Running result – the generated xml file is as follows

Run results – read the xml file as follows

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