python解析xml文件实例分析

<?xml version="1.0" encoding="utf-8"?> 
<books> 
  <book> 
    <author>zoer</author> 
    <title>think in java</title> 
    <content>this is a good book</content> 
  </book> 
  <book> 
    <author>naughty</author> 
    <title>gone with the wind</title> 
    <content>this is a good book 2</content> 
  </book> 
  <book> 
    <author>cc</author> 
    <content>this is a good book 3</content> 
  </book> 
</books>

#coding=utf-8 
#parse all books 
#author:  naughty610 
#date:   2012-8-16 
import xml.dom.minidom 
dom = xml.dom.minidom.parse('C:/Users/naughty/Desktop/books.xml') 
root = dom.documentElement 
#获取每一个下一层节点 
for node in root.childNodes:
#这样取得的是root节点以下一层的节点，而不是root节点以下所有节点 
  #取所有非text节点 
  if node.nodeType == node.ELEMENT_NODE: 
    #取author字段 
    author=node.getElementsByTagName("author") 
    if len(author)>=1: 
      print author[0].childNodes[0].data 
    #取title字段 
    title=node.getElementsByTagName("title") 
    if len(title)>=1: 
      print title[0].childNodes[0].data 
    #取content字段 
    content=node.getElementsByTagName("content") 
    if len(content)>=1: 
      print content[0].childNodes[0].data 
    print "........................parting line........................"