codegay

python3版

#2016年9月30日 22:48:33 codegay

import re
rec =  re.compile("\s*点击下载\s*",re.DOTALL)
with open("a.txt","r+") as f:
	txt = f.read()
	print("原文:\n", txt)
	txt = rec.sub("\n",txt)
	print("新：\n", txt)
	f.seek(0)
	f.truncate(0)
	f.write(txt) #覆盖原文件
复制代码