發起http請求 獲取返回值 返回值是字符串

第三方模塊安裝 pip install requests

返回值格式 xml html jaon

json

功能 loads 字符串》》》列表 字典 字符串裏面必須是“”，因為其他的編程語言字符串都是“”

dups 列表》》》字符串

xml

from xml.etree import ElementTree as ET
tree = ET.parse(‘1.xml‘)
root = tree.getroot()
print(type(root))

# <class ‘xml.etree.ElementTree.Element‘>
# dir(Element):
# append‘, ‘attrib‘, ‘clear‘, ‘extend‘, ‘find‘, ‘findall‘, ‘findtext‘, ‘get‘, ‘getchildren‘, ‘getiterator‘, ‘insert‘, ‘items‘, ‘iter‘, ‘iterfind‘, ‘itertext‘, ‘keys‘, ‘makeelement‘, ‘remove‘, ‘set‘, ‘tag‘, ‘tail‘, ‘text‘

<class ‘xml.etree.ElementTree.Element‘>

dir(Element):

append‘, ‘attrib‘, ‘clear‘, ‘extend‘, ‘find‘, ‘findall‘, ‘findtext‘, ‘get‘, ‘getchildren‘, ‘getiterator‘, ‘insert‘, ‘items‘, ‘iter‘, ‘iterfind‘, ‘itertext‘, ‘keys‘, ‘makeelement‘, ‘remove‘, ‘set‘, ‘tag‘, ‘tail‘, ‘text‘

from xml.etree import ElementTree as ET
tree = ET.parse(‘1.xml‘)
 

#ET.parse（添加文件路徑）  ET.Element(文件節點，Element對象)

root = tree.getroot() son = root.makeelement("dat",{"k1":"k2"}) root.append(son) s = son.makeelement("tt",{"ks":"vs"}) son.append(s) tree.write("1.xml")
#添加子節點 孫子節點

添加子節點 孫子節點

from xml.etree import ElementTree as ET
tree = ET.parse(‘1.xml‘)
root = tree.getroot()
son = ET.Element("dat",{"k1":"k2"})
root.append(son)

tree.write("1.xml")
#直接根據類Element創建節點
 

直接根據類Element創建節點

from xml.etree import ElementTree as ET
tree = ET.parse(‘1.xml‘)
print(tree,type(tree))
from xml.etree.ElementTree import ElementTree  #用pychrm查找類ElementTree

#1   方法paese就是 調用ElementTree類 創建對象
#2   方法getroot 獲取xml跟節點
#3   方法write 將創建的在內存的子節點 寫入文件

#創建XML文檔1
from xml.etree import ElementTree as ET
root = ET.Element("famliy")
son1 = ET.Element(‘son‘,{‘name‘:"er1"})
son2 = ET.Element(‘son‘,{‘name‘:"er2"})
root.append(son1)
root.append(son2)
sun1 = ET.Element(‘sun‘,{‘name‘:"s1"})
sun2 = ET.Element(‘sun‘,{‘name‘:"s2"})
son1.append(sun1)
son2.append(sun2)
tree = ET.ElementTree(root)
tree.write(‘1.xml‘)

# 創建XML文檔2
from xml.etree import ElementTree as ET

root = ET.Element(‘famliy‘)
son1 = ET.SubElement(root,‘sun‘,attrib={‘name‘:"s1"})
son2 = ET.SubElement(root,‘sun‘,attrib={‘name‘:"s2"})
root.append(son1)
root.append(son2)
tree = ET.ElementTree(root)
tree.write(‘2.xml‘,encoding=‘utf-8‘)

# 創建XML文檔3
from xml.etree import ElementTree as ET

# 創建根節點
root = ET.Element("famliy")


# 創建大兒子
# son1 = ET.Element(‘son‘, {‘name‘: ‘兒1‘})
son1 = root.makeelement(‘son‘, {‘name‘: ‘兒1‘})
# 創建小兒子
# son2 = ET.Element(‘son‘, {"name": ‘兒2‘})
son2 = root.makeelement(‘son‘, {"name": ‘兒2‘})

# 在大兒子中創建兩個孫子
# grandson1 = ET.Element(‘grandson‘, {‘name‘: ‘兒11‘})
grandson1 = son1.makeelement(‘grandson‘, {‘name‘: ‘兒11‘})
# grandson2 = ET.Element(‘grandson‘, {‘name‘: ‘兒12‘})
grandson2 = son1.makeelement(‘grandson‘, {‘name‘: ‘兒12‘})

son1.append(grandson1)
son1.append(grandson2)


# 把兒子添加到根節點中
root.append(son1)
root.append(son1)

tree = ET.ElementTree(root)
tree.write(‘oooo.xml‘,encoding=‘utf-8‘, short_empty_elements=False)

創建方式（二）

#帶縮進的創建xml 
from xml.etree import ElementTree as ET

root = ET.Element(‘famliy‘)
son1 = ET.SubElement(root,‘sun‘,attrib={‘name‘:"s1"})
son2 = ET.SubElement(root,‘sun‘,attrib={‘name‘:"s2"})
root.append(son1)
root.append(son2)
def MyWrite(root,name):
    from xml.dom import minidom
    rough_string = ET.tostring(root, ‘utf-8‘)
    reparsed = minidom.parseString(rough_string)
    new_str = reparsed.toprettyxml(indent="\t")

    f = open(name, ‘w‘, encoding=‘utf-8‘)
    f.write(new_str)
    f.close()

MyWrite(root,"5.xml")

configparser用於處理特定格式的文件

特定格式
# 註釋1
;  註釋2
 
[section1] # 節點
k1 = v1    # 值
k2:v2       # 值
 
[section2] # 節點
k1 = v1    # 值

import configparser
con = configparser.ConfigParser()
con.read(‘in‘,encoding=‘utf-8‘)
result = con.sections()
print(result)
ret = con.options(‘section1‘)
print(ret)

模塊urllib requests json xml configparser 學習筆記