python xml.etree.ElementTree遍历xml所有节点实例详解

python xml.etree.ElementTree遍历xml所有节点

XML文件内容:

<students>

<student name='刘备' sex='男' age='35'/>

<student name='吕布' sex='男' age='38'/>

<student name='貂蝉' sex='女' age='22'/>

</students>

代码:

#-*- coding: UTF-8 -*-

# 从文件中读取数据

import xml.etree.ElementTree as ET

#全局唯一标识

unique_id = 1

#遍历所有的节点

def walkData(root_node, level, result_list):

global unique_id

temp_list =[unique_id, level, root_node.tag, root_node.attrib]

result_list.append(temp_list)

unique_id += 1

#遍历每个子节点

children_node = root_node.getchildren()

if len(children_node) == 0:

return

for child in children_node:

walkData(child, level + 1, result_list)

return

#获得原始数据

#out:

#[

# #ID, Level, Attr Map

# [1, 1, {'ID':1, 'Name':'test1'}],

# [2, 1, {'ID':1, 'Name':'test2'}],

#]

def getXmlData(file_name):

level = 1 #节点的深度从1开始

result_list = []

root = ET.parse(file_name).getroot()

walkData(root, level, result_list)

return result_list

if __name__ == '__main__':

file_name = 'test.xml'

R = getXmlData(file_name)

for x in R:

print x

pass

输出结果:

[1, 1, 'students', {}]

[2, 2, 'student', {'age': '35', 'name': u'\u5218\u5907', 'sex': u'\u7537'}]

[3, 2, 'student', {'age': '38', 'name': u'\u5415\u5e03', 'sex': u'\u7537'}]

[4, 2, 'student', {'age': '22', 'name': u'\u8c82\u8749', 'sex': u'\u5973'}]

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