Question

我是Python的新手。我有2个词典：group1和group2，如果在词典中，我需要替换文本文件中的行为null / delete：

{'car': set(['ab', 'ef', 'ad', 'cd']), 'bike': set(['ac', 'de'])}
{'car': ['go', 'drive', 'enjoy'], 'bike': ['ride']}

我的档案：

  !hello!!
mycar
car(ab,ef,ad,cd)
 go
 drive
 enjoy

bike(ac,de)
    ride

预期输出

  !hello!!
mycar

必须将输出写入同一文件而不影响/其他行及其缩进！

Answer 1

试试这个：

#!/usr/bin/env python
#-*- coding:utf-8 -*-

import re

path = 'your file path'

group1 = {'car': set(['ab', 'ef', 'ad', 'cd']), 'bike': set(['ac', 'de'])}
group2 = {'car': ['go', 'drive', 'enjoy'], 'bike': ['ride']}


f = open(path, 'r')

text = f.readlines()
f.close()
flag = 0
lines = []
for line in text:
    for i in list(group1['car']):
        if re.search(i, line):
            flag = 1
            break
    if flag == 1:
        flag = 0
        continue
    for i in list(group1['bike']):
        if re.search(i, line):
            flag = 1
            break
    if flag == 1:
        flag = 0
        continue        
    for i in group2['car']:
        if re.search(i, line):
            flag = 1
            break
    if flag == 1:
        flag = 0
        continue        
    for i in group2['bike']:
        if re.search(i, line):
            flag = 1
            break
    if flag == 1:
        flag = 0
        continue        
    lines.append(line)

f = open(path, 'w')
for l in lines:
    f.write(l)
f.close()

https://stackoverflow.com/help/someone-answers

Python在字典中删除行或用null替换行

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