XML 属性修改未保存

Question

我有以下代码：

def incrCount(root):
    root.attrib['count'] = int(root.attrib['count']) + 1
    # root.set('count', int(root.attrib['count']) + 1)

root = getXMLRoot('test.xml')
incrCount(root)
print root.attrib['count']

当我运行它时，打印了正确的值，但在执行结束时该更改在文件中永远不可见。以上两种方法我都试过了，都没有成功。谁能指出我哪里出错了？

Answer 1

如文档中所示（19.7.1.4. Modifying an XML File), you need to write back to file after all modification operations has been performed. Assuming that root references instance of ElementTree, you can use ElementTree.write() 用于此目的的方法：

.....
root = getXMLRoot('test.xml')
incrCount(root)
print root.attrib['count']
root.write('test.xml')

XML 属性修改未保存

XML Attribute modification not being saved

python

xml

xml-attribute