Question

Python的XML节点替换或字符串替换问题，此为补偿贴，只限luotuo512来回答

Answer 1

两种方法：

old=open("test.xml")
lines=old.readlines()
a="<a/>"
i=1
newlines=[]
for line in lines:
if a in line:
line=line.replace(a,"<a"+str(i)+">a"+str(i)+"for a</a"+str(i)+">")
i=i+1
newlines.append(line)

for line in newlines:
print line

new=open("newtest.xml","w")
new.writelines(newlines)
new.close()
old.close()

结果：

<root>text
<a1>a1for a</a1>
<a2>a2for a</a2>
<a3>a3for a</a3>
<root>

import xml.dom.minidom
oldxmlfile=open("test.xml")
oldxml=oldxmlfile.read()
oldxmlfile.close()
doc = xml.dom.minidom.parseString(oldxml)
index=1
for node in doc.getElementsByTagName("a"):
node.tagName="a"+str(index)
index=index+1
newxml=doc.toprettyxml()
xmlfile=open("newxml2.xml","w")
xmlfile.write(newxml);
xmlfile.close()

lz是好人。