python写xml文件的操作实例，pythonxml文件实例

文章由Byrx.net分享于2019-03-22 05:03:59评论（592）

python写xml文件的操作实例，pythonxml文件实例

本文实例讲述了python写xml文件的操作的方法，分享给大家供大家参考。具体方法如下：

要生成的xml文件格式如下：

<?xml version="1.0" ?> 
<!--Simple xml document__chapter 8--> 
<book> 
  <title> 
    sample xml thing 
  </title> 
  <author> 
    <name> 
      <first> 
        ma 
      </first> 
      <last> 
        xiaoju 
      </last> 
    </name> 
    <affiliation> 
      Springs Widgets, Inc. 
    </affiliation> 
  </author> 
  <chapter number="1"> 
    <title> 
      First 
    </title> 
    <para> 
      I think widgets are greate.You should buy lots of them forom 
      <company> 
        Spirngy Widgts, Inc 
      </company> 
    </para> 
  </chapter> 
</book>

Python实现代码如下：

from xml.dom import minidom, Node 
 
doc = minidom.Document() 
 
doc.appendChild(doc.createComment("Simple xml document__chapter 8")) 
 
#generate the book 
book = doc.createElement('book') 
doc.appendChild(book) 
 
#the title 
title = doc.createElement('title') 
title.appendChild(doc.createTextNode("sample xml thing")) 
book.appendChild(title) 
 
#the author section 
author = doc.createElement("author") 
book.appendChild(author) 
name = doc.createElement('name') 
author.appendChild(name) 
firstname = doc.createElement('first') 
firstname.appendChild(doc.createTextNode("ma")) 
name.appendChild(firstname) 
lastname = doc.createElement('last') 
name.appendChild(lastname) 
lastname.appendChild(doc.createTextNode("xiaoju")) 
 
affiliation = doc.createElement("affiliation") 
affiliation.appendChild(doc.createTextNode("Springs Widgets, Inc.")) 
author.appendChild(affiliation) 
 
#The chapter 
chapter = doc.createElement('chapter') 
chapter.setAttribute('number', '1') 
title = doc.createElement('title') 
title.appendChild(doc.createTextNode("First")) 
chapter.appendChild(title) 
book.appendChild(chapter) 
 
para = doc.createElement('para') 
para.appendChild(doc.createTextNode("I think widgets are greate.\ 
You should buy lots of them forom")) 
company = doc.createElement('company') 
company.appendChild(doc.createTextNode("Spirngy Widgts, Inc")) 
para.appendChild(company) 
chapter.appendChild(para) 
 
print doc.toprettyxml()

希望本文所述对大家的Python程序设计有所帮助。

python操作xml文件问题

我给你个示例代码，你自己改改增加子节点那一段就好了。
#!/usr/bin/python# -*- coding=utf-8 -*-# author : wklken@yeah.net# date: 2012-05-25# version: 0.1from xml.etree.ElementTree import ElementTree,Elementdef read_xml(in_path): '''读取并解析xml文件 in_path: xml路径 return: ElementTree''' tree = ElementTree() tree.parse(in_path) return treedef write_xml(tree, out_path): '''将xml文件写出 tree: xml树 out_path: 写出路径''' tree.write(out_path, encoding="utf-8",xml_declaration=True)def if_match(node, kv_map): '''判断某个节点是否包含所有传入参数属性 node: 节点 kv_map: 属性及属性值组成的map''' for key in kv_map: if node.get(key) != kv_map.get(key): return False return True#---------------search -----def find_nodes(tree, path): '''查找某个路径匹配的所有节点 tree: xml树 path: 节点路径''' return tree.findall(path)def get_node_by_keyvalue(nodelist, kv_map): '''根据属性及属性值定位符合的节点，返回节点 nodelist: 节点列表 kv_map: 匹配属性及属性值map''' result_nodes = [] for node in nodelist: if if_match(node, kv_map): result_nodes.append(node) return result_nodes#---------------change -----def change_node_properties(nodelist, kv_map, is_delete=False): '''修改/增加 /删除节点的属性及属性值 nodelist: 节点列表 kv_map:属性及属性值map''' for node in nodelist: for key in kv_map: if is_delete: ......余下全文>>

指教：怎用python读取xml文件中指定标签的文档内容并将其更改？最好写下详细代码，非常感谢哈

使用python自带的ElementTree模块，给你个例子你就知道了

xml文档
<?xml version="1.0" encoding="utf-8"?>
<config>
<id>0</id>
<log_path>E:/Python</log_path>
</config>

Python 代码，修改id节的内容

from xml.etree import ElementTree
xml_file='config.xml'
xml=ElementTree.ElementTree(file=xml_file).getroot()
xml.find('id').text=1

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python写xml文件的操作实例，pythonxml文件实例