python操作xml的两种方法

from xml.parsers.expat import ParserCreate

class DefaultSaxHandler(object):

    def start_element(self, name, attrs):

        print('sax:start_element: %s, attrs: %s' % (name, str(attrs)))

    def end_element(self, name):

        print('sax:end_element: %s' % name)

    def char_data(self, text):

        print('sax:char_data: %s' % text)

xml = r'''<?xml version="1.0"?>

<ol>

    <li><a href="/python">Python</a></li>

    <li><a href="/ruby">Ruby</a></li>

</ol>

'''

handler = DefaultSaxHandler()

parser = ParserCreate()

parser.StartElementHandler = handler.start_element

parser.EndElementHandler = handler.end_element

parser.CharacterDataHandler = handler.char_data

parser.Parse(xml)

//测试结果

sax:start_element: ol, attrs: {}

sax:char_data:

sax:char_data:    

sax:start_element: li, attrs: {}

sax:start_element: a, attrs: {'href': '/python'}

sax:char_data: Python

sax:end_element: a

sax:end_element: li

sax:char_data:

sax:char_data:    

sax:start_element: li, attrs: {}

sax:start_element: a, attrs: {'href': '/ruby'}

sax:char_data: Ruby

sax:end_element: a

sax:end_element: li

sax:char_data:

sax:end_element: ol