[ZT]Python使用xml.etree.ElementTree操作xml文件

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

import xml.etree.ElementTree as ET
import xml.dom.minidom as minidom

#获取根节点
def getRoot(xmlpath):
    '''
    xmlpath:xml文件的路径
    '''
    root = ET.parse(xmlpath).getroot()
    return root

#格式化输出xml文件
def display(root):
    
    rough_string = ET.tostring(root, 'utf-8')
    reparsed = minidom.parseString(rough_string)
    print reparsed.toprettyxml(indent=" " , encoding="utf-8");


if __name__ == '__main__':
    
    root = ET.Element('bookList')
    
    #==============添加节点========================
    #向root节点下插入节点<book id='ISO001'>
    bookE = ET.SubElement(root,'book')#方式一
    bookE.set('id', 'ISO001')#为节点添加属性
    #向<book>节点下插入<author>Gaosilin</version>节点
    authorE = ET.Element('author')
    authorE.text = 'Gaosilin'#为节点赋值
    bookE.append(authorE)#方式二
    ##向<book>节点下插入<name>Java</name>节点
    nameE = ET.Element('name')
    nameE.text = 'java'
    bookE.insert(1,nameE)#方式三
    #修改
    nameE.text = '修改后的C'
    display(root)
    #==============删除节点========================
    bookE.remove(nameE)#注意需删除的节点一定要是该父节点的下一级节点
    bookE.remove(authorE)
    bookE.clear()#删除该节点下的所有子节点，等价于上两句
    root.remove(bookE)
# root.remove(nameE)#出错：因为nameE的上一级节点是bookE而不是root
    display(root)