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false 1 2008 141100 4 2011 59900 68 2011 13600 echo "Hello world!"
#!/usr/bin/env python# -*- coding:utf-8 -*-# author: Sudley# ctime: 2020/02/16import xml.etree.ElementTree as ETdef create_Xml(xml_file): #创建包含root标签的xml文件 with open(xml_file,'w') as f: f.write(' \n') f.write('\n') f.write('\n') #使用ET模块对xml文件进行解析 tree = ET.parse(xml_file) root = tree.getroot() #创建disabled标签 SubElement_disabled = ET.SubElement(root,'disabled') SubElement_disabled.text = 'false' #创建第一个country标签 SubElement_country0 = ET.SubElement(root,'country',attrib={ 'name':'"Liechtenstein"'}) #添加含attrib的标签，atrib后面接的是字典格式的 SubElement_country0_rank = ET.SubElement(SubElement_country0,'rank') SubElement_country0_rank.text = '1' #配置text，注意不能直接用int类型的 SubElement_country0_year = ET.SubElement(SubElement_country0,'year') SubElement_country0_year.text = '2008' SubElement_country0_gdppc = ET.SubElement(SubElement_country0,'gdppc') SubElement_country0_gdppc.text = '141100' SubElement_country0_neighbor0 = ET.SubElement(SubElement_country0,'neighbor',attrib={ 'name':'Austria','direction':'E'}) SubElement_country0_neighbor1 = ET.SubElement(SubElement_country0,'neighbor',attrib={ 'name':'Switzerland','direction':'W'}) #创建二个country标签 SubElement_country1 = ET.SubElement(root,'country',attrib={ 'name':'Singapore'}) SubElement_country1_rank = ET.SubElement(SubElement_country1,'rank') SubElement_country1_rank.text = '4' SubElement_country1_year = ET.SubElement(SubElement_country1,'year') SubElement_country1_year.text = '2011' SubElement_country1_gdppc = ET.SubElement(SubElement_country1,'gdppc') SubElement_country1_gdppc.text = '59900' SubElement_country1_neighbor0 = ET.SubElement(SubElement_country1,'neighbor',attrib={ 'name':'Malaysia','direction':'N'}) #创建三个country标签 SubElement_country2 = ET.SubElement(root,'country',attrib={ 'name':'Panama'}) SubElement_country2_rank = ET.SubElement(SubElement_country2,'rank') SubElement_country2_rank.text = '68' SubElement_country2_year = ET.SubElement(SubElement_country2,'year') SubElement_country2_year.text = '2011' SubElement_country2_gdppc = ET.SubElement(SubElement_country2,'gdppc') SubElement_country2_gdppc.text = '13600' SubElement_country2_neighbor0 = ET.SubElement(SubElement_country2,'neighbor',attrib={ 'name':'Costa Rica','direction':'W'}) SubElement_country2_neighbor1 = ET.SubElement(SubElement_country2,'neighbor',attrib={ 'name':'Colombia','direction':'E'}) #创建builders标签 SubElement_builders = ET.SubElement(root,'builders') SubElement_builders_Shell = ET.SubElement(SubElement_builders,'hudson.tasks.Shell') SubElement_builders_Shell_command = ET.SubElement(SubElement_builders_Shell,'command') SubElement_builders_Shell_command.text = 'echo "Hello world!"' #上面创建的内容都在一行上面显示，不利于我们的查看，对标签执行美化，标签前面添加是的的缩进 prettyXml(root, ' ', '\n') #执行美化方法 ET.dump(root) #显示出美化后的XML内容 tree.write(xml_file) #将修改写入本地xml文件def prettyXml(element, indent, newline, level = 0): # elemnt为传进来的Elment类，参数indent用于缩进，newline用于换行 if element: # 判断element是否有子元素 if element.text == None or element.text.isspace(): # 如果element的text没有内容 element.text = newline + indent * (level + 1) else: element.text = newline + indent * (level + 1) + element.text.strip() + newline + indent * (level + 1) #else: # 此处两行如果把注释去掉，Element的text也会另起一行 #element.text = newline + indent * (level + 1) + element.text.strip() + newline + indent * level temp = list(element) # 将elemnt转成list for subelement in temp: if temp.index(subelement) < (len(temp) - 1): # 如果不是list的最后一个元素，说明下一个行是同级别元素的起始，缩进应一致 subelement.tail = newline + indent * (level + 1) else: # 如果是list的最后一个元素， 说明下一行是母元素的结束，缩进应该少一个 subelement.tail = newline + indent * level prettyXml(subelement, indent, newline, level = level + 1) # 对子元素进行递归操作xml_file = '/tmp/template.xml'create_Xml(xml_file) 查看所有的neighbor信息，并把attrib属性中’direction’为‘E’的修改为‘East’
>>> for neighbor in root.iter('neighbor'):... if neighbor.attrib['direction'] == 'E':... neighbor.attrib['direction'] = 'East'... print(neighbor.attrib)...{ 'direction': 'East', 'name': 'Austria'}{ 'direction': 'W', 'name': 'Switzerland'}{ 'direction': 'N', 'name': 'Malaysia'}{ 'direction': 'W', 'name': 'Costa Rica'}{ 'direction': 'East', 'name': 'Colombia'} 获取country name和rank属性
>>> for country in root.findall('country'):... rank = country.find('rank').text... name = country.get('name')... print(name, rank)...Liechtenstein 1Singapore 4Panama 68 在rank标签中新增attrib属性
>>> for rank in root.iter('rank'):... new_rank = int(rank.text) + 1... rank.text = str(new_rank)... rank.set('updated', 'yes')...>>> tree.write('/tmp/output.xml') 修改后的xml文件如下：
false 2 2008 141100 5 2011 59900 69 2011 13600 echo "Hello world!"
删除rank > 3的country，删除builders下的hudson.tasks.Shell标签，并配置text为deleted
>>> for country in root.findall('country'):... rank = int(country.find('rank').text)... if rank > 3:... root.remove(country)...>>> for builders in root.findall('builders'):... for shell in builders.findall('hudson.tasks.Shell'):... builders.remove(shell)... builders.text = 'deleted'...>>> tree.write('/tmp/output.xml') 修改后的xml文件：
false 2 2008 141100 deleted
当一个页签下面有多个子标签时使用remove删除发现一次删不全
比如下面文件test_all compile get_node_list job_data new_job pipeline0 pipeline1 template test_1 test_2 test_3 false
想删除jobNames标签下的所有string标签，可先获取string的数量num然后执行num次删除操作，删除部分代码参考如下
root = tree.getroot()for i in range(0,self.num): for jobNames in root.findall('jobNames'): for string in jobNames: if string.text: jobNames.remove(string) 参考文献
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