xmldomminidom

xml version&＃61;"1.0" encoding&＃61;"utf-8"?>

<book_store name&＃61;"newhua" website&＃61;"https://www.amazon.cn/b?node&＃61;1876097071"><book1><name>hamletname><author>William Shakespeareauthor>book1>
book_store>

from xml.dom.minidom import parse,parseStringdom1 &＃61; parse(&＃39;test.xml&＃39;) #通过文件名解析xml
data &＃61; open(&＃39;test.xml&＃39;)
dom2 &＃61; parse(data) #通过解析已打开的xml文件

note &＃61; """

Peter
Jane
Reminder
Don&＃39;t be late for the meeting

"""
dom3 &＃61; parseString(note) #解析字符串

doc &＃61; parse(&＃39;test.xml&＃39;) #通过文件名解析xml
root &＃61; doc.documentElement

from xml.dom.minidom import Document
doc &＃61; Document() #创建一篇空的文档from xml.dom.minidom import getDOMImplementation
impl &＃61; getDOMImplementation()
#创建doc&＃xff0c;并且添加根节点book_store
doc &＃61; impl.createDocument(None,"book_store",None)
print(doc.documentElement.tagName) #book_store#doc同doc&＃61;Document()
doc2 &＃61; impl.createDocument(None,None,None)

<collection shelf&＃61;"New Arrivals">
<movie title&＃61;"Enemy Behind"><type>War, Thrillertype><format>DVDformat><year>2003year><rating>PGrating><stars>10stars><description>Talk about a US-Japan wardescription>
movie>
<movie title&＃61;"Transformers"><type>Anime, Science Fictiontype><format>DVDformat><year>1989year><rating>Rrating><stars>8stars><description>A schientific fictiondescription>
movie><movie title&＃61;"Trigun"><type>Anime, Actiontype><format>DVDformat><episodes>4episodes><rating>PGrating><stars>10stars><description>Vash the Stampede!description>
movie>
<movie title&＃61;"Ishtar"><type>Comedytype><format>VHSformat><rating>PGrating><stars>2stars><description>Viewable boredomdescription>
movie>
collection>

import xml.dom.minidom
from xml.dom.minidom import parse#使用minidom解析器打开xml文档
tree &＃61; xml.dom.minidom.parse(&＃39;movies.xml&＃39;)
#print(type(tree)) #
collection &＃61; tree.documentElement #获取文档根元素
if collection.hasAttribute(&＃39;shelf&＃39;):print("root element attribute:",collection.getAttribute("shelf"))
#print(collection.getAttribute(&＃39;shelf&＃39;)) #获取属性
movie_list &＃61; collection.getElementsByTagName(&＃39;movie&＃39;)
movie_info_list &＃61; []
for movie in movie_list:print(&＃39;******Movie*****&＃39;)if movie.hasAttribute("title"):title &＃61; movie.getAttribute(&＃39;title&＃39;)print(&＃39;Title&＃39;,title)type &＃61; movie.getElementsByTagName(&＃39;type&＃39;)[0].childNodes[0].dataformat &＃61; movie.getElementsByTagName(&＃39;format&＃39;)[0].childNodes[0].datarating &＃61; movie.getElementsByTagName("rating")[0].firstChild.datastars &＃61; movie.getElementsByTagName(&＃39;stars&＃39;)[0].firstChild.datadescription &＃61; movie.getElementsByTagName("description")[0].firstChild.dataprint("type: ", type)print("format: ", format)print("rating: ", rating)print("stars: ", stars)print(&＃39;description: &＃39;, description)

xml version&＃61;"1.0" encoding&＃61;"utf-8"?>

<book_store name&＃61;"amzon" website&＃61;"https://www.amazon.cn/b?node&＃61;1876097071"><book1><name>hamletname><author>William Shakespeareauthor>book1>
book_store>

from xml.dom.minidom import Document
doc &＃61; Document()

　comment &＃61; doc.createComment(&＃39;just a comment about book_store&＃39;) #添加注释
  doc.appendChild(comment)

# from xml.dom.minidom import getDOMImplementation
# impl &＃61; getDOMImplementation()
# doc &＃61; impl.createDocument(None, None, None)

book_store &＃61; doc.createElement(&＃39;book_store&＃39;) # 创建根节点
book_store.setAttribute(&＃39;name&＃39;, &＃39;amazon&＃39;) #设置属性
book_store.setAttribute(&＃39;website&＃39;, &＃39;https://www.amazon.cn/b?node&＃61;1876097071&＃39;)
doc.appendChild(book_store) #添加节点
book1 &＃61; doc.createElement(&＃39;book1&＃39;) #创建元素book1
book1_name &＃61; doc.createElement(&＃39;name&＃39;)
book1_name_value &＃61; doc.createTextNode(&＃39;hamlet&＃39;) #创建text节点
book1_name.appendChild(book1_name_value)
book1_author &＃61; doc.createElement(&＃39;author&＃39;)
book1_author_value &＃61; doc.createTextNode(&＃39;William Shakespeare&＃39;)
book1_author.appendChild(book1_author_value)
book1.appendChild(book1_name)
book1.appendChild(book1_author)
book_store.appendChild(book1)print(doc.toprettyxml(indent&＃61;&＃39;\t&＃39;, newl&＃61;&＃39;\n&＃39;, encoding&＃61;&＃39;utf-8&＃39;).decode(&＃39;utf-8&＃39;))
# with open(&＃39;book_store.xml&＃39;,&＃39;wb&＃39;) as f: #写入的数据是bytes类型&＃xff0c;所以wb方法写入
# data &＃61; doc.toprettyxml(indent&＃61;&＃39;\t&＃39;, newl&＃61;&＃39;\n&＃39;, encoding&＃61;&＃39;utf-8&＃39;) #bytes类型数据
# f.write(data)
with open(&＃39;test_store.xml&＃39;, &＃39;w&＃39;) as f:doc.writexml(f, indent&＃61;&＃39;\t&＃39;, newl&＃61;&＃39;\n&＃39;, encoding&＃61;&＃39;utf-8&＃39;) #写入的是str类型数据,所以w方法写入

class MyXMLGenerator:def __init__(self,xml_name):self.xml_name &＃61; xml_nameself.doc &＃61; xml.dom.minidom.Document()def createComment(self,value):c &＃61; self.doc.createComment(value)self.doc.appendChild(c)def setNodeAttribute(self,node,attname,value):node.setAttribute(attname,value)def createElement(self,tagName):ele &＃61; self.doc.createElement(tagName)return eledef appendChild(self,node,parent_node&＃61;None):if parent_node is not None:parent_node.appendChild(node)else:self.doc.appendChild(node)def setNodeValue(self,node,value):text_node &＃61; self.doc.createTextNode(value)node.appendChild(text_node)def genXML(self):#print(self.doc.toprettyxml(indent&＃61;&＃39;\t&＃39;,newl&＃61;&＃39;\n&＃39;,encoding&＃61;&＃39;utf-8&＃39;).decode(&＃39;utf-8&＃39;))with open(self.xml_name,&＃39;wb&＃39;) as f:data &＃61; self.doc.toprettyxml(indent&＃61;&＃39;\t&＃39;,newl&＃61;&＃39;\n&＃39;,encoding&＃61;&＃39;utf-8&＃39;) #python3中二进制数据f.write(data)