擅长:python、mysql、java
<pre><code>import os
os.chdir(r'C:\Users\LAVANYA\OneDrive\Documents\am3')
file=open('am2.txt','r')
doc=file.readlines()
a=[]
for i in doc:
a.append(i.replace(":",":\n"))
file=open('am2.txt','w')
file.writelines(a)
file.close()
</code></pre>