使用xml.dom.minidom计算python中的xml标记数

Question

我的XML文件test.XML包含以下标记

<?xml version="1.0" encoding="ISO-8859-1"?>
<AppName>
    <author>Subho Halder</author>
    <description> Description</description>
    <date>2012-11-06</date>
        <out>Output 1</out>
        <out>Output 2</out>
        <out>Output 3</out>
</AppName>

我想计算<out>标记出现的次数

这是我迄今为止编写的python代码：

from xml.dom.minidom import parseString
file = open('test.xml','r')
data = file.read()
file.close()
dom = parseString(data)
if (len(dom.getElementsByTagName('author'))!=0):
    xmlTag = dom.getElementsByTagName('author')[0].toxml()
    author = xmlTag.replace('<author>','').replace('</author>','')
    print author

有人能帮我吗？

Answer 1

尝试^{}

from xml.dom.minidom import parseString
file = open('test.xml','r')
data = file.read()
file.close()
dom = parseString(data)
print len(dom.getElementsByTagName('out'))

给予

3