pyhton与json,Xml

对简单数据类型的encoding 和 decoding：

使用简单的json.dumps方法对简单数据类型进行编码，例如：

1 2 3 4 5 6

import json   obj = [[1,2,3],123,123.123,'abc',{'key1':(1,2,3),'key2':(4,5,6)}] encodedjson = json.dumps(obj) print repr(obj) print encodedjson

from xml.etree import ElementTree

def print_node(node):

    '''打印结点基本信息'''

    print "=============================================="

    print "node.attrib:%s" % node.attrib

    if node.attrib.has_key("age") > 0 :

        print "node.attrib['age']:%s" % node.attrib['age']

    print "node.tag:%s" % node.tag

    print "node.text:%s" % node.text

def read_xml(text):

    '''读xml文件'''

    # 加载XML文件（2种方法,一是加载指定字符串，二是加载指定文件）   

    # root = ElementTree.parse(r"D:/test.xml")

    root = ElementTree.fromstring(text)

     

    # 获取element的方法

    # 1 通过getiterator

    lst_node = root.getiterator("person")

    for node in lst_node:

        print_node(node)

         

    # 2通过 getchildren

    lst_node_child = lst_node[0].getchildren()[0]

    print_node(lst_node_child)

         

    # 3 .find方法

    node_find = root.find('person')

    print_node(node_find)

     

    #4. findall方法

    node_findall = root.findall("person/name")[1]

    print_node(node_findall)

     

if __name__ == '__main__':

     read_xml(open("test.xml").read())

from xml.etree import ElementTree
def print_node(node):

print "=============================================="
print "node.attrib:%s" % node.attrib
if node.attrib.has_key("age") > 0 :
print "node.attrib['age']:%s" % node.attrib['age']
print "node.tag:%s" % node.tag
print "node.text:%s" % node.text
def read_xml(text):

# root = ElementTree.parse(r"<xml><name>wc</name></xml>")
root = ElementTree.fromstring(text)

lst_node = root.getiterator("person")
for node in lst_node:
print_node(node)

lst_node_child = lst_node[0].getchildren()[0]
print_node(lst_node_child)

node_find = root.find('person')
print_node(node_find)

node_findall = root.findall("person/name")[1]
print_node(node_findall)

if __name__ == '__main__':
#read_xml(open("test.xml").read())
read_xml("<person><name>wc</name></person>")