python - 从文件中提取每一行并将其作为变量传递给 "foreach"循环

Question

有人可以帮我找出使用任何脚本执行此操作的简单方法吗？我将在 Linux 上运行脚本

1 ) 我有一个文件 1，其中包含以下几行:

 (Bank8GntR[3] | Bank8GntR[2] | Bank8GntR[1] | Bank8GntR[0] ),

 (Bank7GntR[3] | Bank7GntR[2] | Bank7GntR[1] | Bank7GntR[0] ),

 (Bank6GntR[3] | Bank6GntR[2] | Bank6GntR[1] | Bank6GntR[0] ),

 (Bank5GntR[3] | Bank5GntR[2] | Bank5GntR[1] | Bank5GntR[0] ),  

2 ) 我需要将 file1 的内容修改如下并写入 file2

 (Bank15GntR[3] | Bank15GntR[2] | Bank15GntR[1] | Bank15GntR[0] ),

 (Bank14GntR[3] | Bank14GntR[2] | Bank14GntR[1] | Bank14GntR[0] ),

 (Bank13GntR[3] | Bank13GntR[2] | Bank13GntR[1] | Bank13GntR[0] ),

 (Bank12GntR[3] | Bank12GntR[2] | Bank12GntR[1] | Bank12GntR[0] ),

所以我必须:

1. 从文件中读取每一行1，
2. 使用正则表达式“搜索”，
3. 匹配 Bank[0-9]GntR,
4. 用“7 added to number matched”替换\1,
5. 将它插回行中，
6. 将该行写入一个新文件。

Answer 1

在 Python 中做这样的事情怎么样:

# a function that adds 7 to a matched group.
# groups 1 and 2, we grabbed (Bank) to avoid catching the digits in brackets.
def plus7(matchobj):
  return '%s%d' % (matchobj.group(1), int(matchobj.group(2)) + 7)

# iterate over the input file, have access to the output file.
with open('in.txt') as fhi, open('out.txt', 'w') as fho:
  for line in fhi:
    fho.write(re.sub('(Bank)(\d+)', plus7, line))