使用python 打开文件并做匹配处理的实例

如下所示：

import os
import re
import string

file = open("data2.txt")
p1 = re.compile(r"^(\d{16})\s+(\d{3})")
re.compile(p1)
for line in file:
   print(line)
   match1 = re.search(p1,line)
   #print(match1.group(0))

   sCard = match1.group(1)
   sValue=match1.group(2)
   print(sCard)
   print(sValue)

b = re.findall(r"\d{2}",sCard)
   # remove r or one \ if want signle \
   c =r'\\x'.join(b)
   c= r'\\x'+c
   print(c)

来源：https://blog.csdn.net/xinke453/article/details/74180678