标签：tag 图片 encoding name upd odi text rect one
xml的格式如下，就是通过<>节点来区别数据结构的:
1 <?xml version="1.0"?> 2 <data> 3 <country name="Liechtenstein"> 4 <rank updated="yes">2</rank> 5 <year>2008</year> 6 <gdppc>141100</gdppc> 7 <neighbor name="Austria" direction="E"/> 8 <neighbor name="Switzerland" direction="W"/> 9 </country> 10 <country name="Singapore"> 11 <rank updated="yes">5</rank> 12 <year>2011</year> 13 <gdppc>59900</gdppc> 14 <neighbor name="Malaysia" direction="N"/> 15 </country> 16 <country name="Panama"> 17 <rank updated="yes">69</rank> 18 <year>2011</year> 19 <gdppc>13600</gdppc> 20 <neighbor name="Costa Rica" direction="W"/> 21 <neighbor name="Colombia" direction="E"/> 22 </country> 23 </data>
xml操作
import xml.etree.ElementTree as ET tree = ET.parse("xml_test.xml") root = tree.getroot() print(root.tag) # 遍历xml文档 for child in root: print(child.tag, child.attrib) for i in child: print(i.tag, i.text,i.attrib) # 只遍历year 节点 for node in root.iter(‘year‘): print(node.tag, node.text)
修改和删除xml
import xml.etree.ElementTree as ET tree = ET.parse("xml_test.xml") root = tree.getroot() # 修改 for node in root.iter(‘year‘): new_year = int(node.text) + 1 node.text = str(new_year) node.set("updated", "yes") tree.write("xml_test.xml") # 删除node for country in root.findall(‘country‘): rank = int(country.find(‘rank‘).text) if rank > 50: root.remove(country) tree.write(‘output.xml‘)
创建xml
import xml.etree.ElementTree as ET new_xml = ET.Element("person_infolist") person_info = ET.SubElement(new_xml, "person_info", attrib={"enrolled": "yes"}) name = ET.SubElement(person_info, "name") age = ET.SubElement(person_info, "age", attrib={"checked": "no"}) sex = ET.SubElement(person_info, "sex") name.text = ‘q1ang‘ age.text = ‘26‘ person_info2 = ET.SubElement(new_xml, "person_info", attrib={"enrolled": "no"}) name = ET.SubElement(person_info2, "name") age = ET.SubElement(person_info2, "age") name.text=‘q2nag‘ age.text = ‘25‘ et = ET.ElementTree(new_xml) # 生成文档对象 et.write("test.xml", encoding="utf-8", xml_declaration=True) ET.dump(new_xml) # 打印生成的格式
>>>
<?xml version=‘1.0‘ encoding=‘utf-8‘?> <person_infolist> <person_info enrolled="yes"> <name>q1ang</name> <age checked="no">26</age> <sex /> </person_info> <person_info enrolled="no"> <name>q2nag</name> <age>25</age> </person_info> </person_infolist>
标签：tag 图片 encoding name upd odi text rect one
原文地址：https://www.cnblogs.com/q1ang/p/9017208.html
