本文实例讲述了python获取任意xml节点值的方法。分享给大家供大家参考。具体实现方法如下：
# -*- coding: utf-8 -*-
import xml.dom.minidom
element_node = xml.dom.node.element_node
class simplexmlgetter(object):
def __init__(self, data):
if type(data) == str:
self.root = xml.dom.minidom.parse(data)
else:
self.root = data
def __getattr__(self, name): #support . operation
if name == ‘data’:
return self.root.firstchild.data
for c in self.root.childnodes:
if c.nodetype == element_node and c.tagname == name:
return simplexmlgetter(c)
def __getitem__(self, index): #support [] operation
enodes = [ e for e in self.root.parentnode.childnodes
if e.nodetype == element_node and e.tagname == self.root.tagname]
return simplexmlgetter(enodes[index])
def __call__(self, *args, **kwargs): #support () openration, for query conditions
for e in self.root.parentnode.childnodes:
if e.nodetype == element_node:
for key in kwargs.keys():
if e.getattribute(key) != kwargs[key]:
break
else:
return simplexmlgetter(e)
if __name__ == “__main__”:
x = simplexmlgetter(“sysd.xml”)
print x.sysd.sysagent.param[2].data
print x.sysd.sysagent.param(name=”querytimeout”, type=”second”).data
希望本文所述对大家的python程序设计有所帮助。