xml数据示例
xml数据处理
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
|
import xml.etree.ElementTree as ET'''xml 数据的处理 '''tree = ET.parse("xmltest.xml")root = tree.getroot() #数据内存地址print(root.tag) #标签'''遍历所有数据'''for i in root: print(i.tag,i.attrib) #attrib 获取属性名 for k in i: print(k.tag,k.attrib,k.text) #text 文本内容''' 遍历某一个标签的值 '''for ta in root.iter("year"): print(ta.tag,ta.attrib,ta.text) |
XML数据的创建
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
'''xml 数据的创建 '''new_xml = ET.Element("personinfolist") #Element 根节点personinfo = ET.SubElement(new_xml, "personinfo", attrib={"enrolled": "yes"})name = ET.SubElement(personinfo, "name") #SubElement 子节点name.text = "Alex Li"age = ET.SubElement(personinfo, "age", attrib={"checked": "no"})sex = ET.SubElement(personinfo, "sex")age.text = '56'personinfo2 = ET.SubElement(new_xml, "personinfo", attrib={"enrolled": "no"})name = ET.SubElement(personinfo2, "name")name.text = "Oldboy Ran"age = ET.SubElement(personinfo2, "age")age.text = '19'et = ET.ElementTree(new_xml) # 生成文档对象et.write("test.xml", encoding="utf-8", xml_declaration=True)""" xml_declaration 声明xml文件类型 """ET.dump(new_xml) # 打印生成的格式 |
XML数据的修改
|
1
2
3
4
5
6
7
8
9
10
11
12
13
|
'''xml 数据的修改 '''for node in root.iter('year'): new_year = int(node.text) + 1 node.text = str(new_year) node.set("updated_by", "Alex")tree.write("xmltest.xml")# 删除nodefor country in root.findall('country'): rank = int(country.find('rank').text) if rank > 50: root.remove(country)tree.write('output.xml') |
<data><country name="Liechtenstein"><rank updated="yes">2</rank><year updated_by="Alex">2009</year><gdppc>141100</gdppc><neighbor direction="E"name="Austria"/><neighbor direction="W"name="Switzerland"/></country><country name="Singapore"><rank updated="yes">5</rank><year updated_by="Alex">2012</year><gdppc>59900</gdppc><neighbor direction="N"name="Malaysia"/></country><country name="Panama"><rank updated="yes">69</rank><year updated_by="Alex">2012</year><gdppc>13600</gdppc><neighbor direction="W"name="Costa Rica"/><neighbor direction="E"name="Colombia"/><info><population>8</population><size>960</size></info></country></data>