查詢檔案中含有特殊字串的行
#!/usr/bin/python
# -*- coding:utf-8 -*-
import re
file1 =
open
('test.txt'
,'r+'
)istxt = re.
compile
(r'.*if.*'
,re.i)
for line in file1.readlines():
line = line.strip(
) ifstr = re.findall(istxt,line)
if ifstr:
print ifstr
複製**
'''
'''import re
import os
file1 =
open
('test.txt'
,'r+'
)new_file =
'new_test.txt'
ifnot os.path.exists(new_file)
: os.system(r"touch {}"
.format
(new_file)
)file2 =
open
('new_test.txt'
,'r+'
)istxt = re.
compile
(r'.*if.*'
,re.i)
for line in file1.readlines():
line = line.strip(
) ifstr = re.findall(istxt,line)
if ifstr:
line =
else
: file2.write(line +
'\n'
)file1.close(
)file2.close(
)#重新命名檔案
os.rename(
"new_test.txt"
,"test.txt"
)
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