Question

我在文本文件中有这种形式的数据。

UB25X

0060 4/22/16 -20.19

0060 3/17/15 -23.37

* UB25X

FJ39Y

0060 1/15/16 -27.34

0060 7/15/16 -23.10

* FJ39Y

我想打印此输出：

UB25X 0060 4/22/16 -20.19

UB25X 0060 3/17/15 -23.37

FJ39Y 0060 1/15/16 -27.34

FJ39Y 0060 7/15/16 -23.10

Answer 1

您可以使用：

input = '''UB25X
0060 4/22/16 -20.19
0060 3/17/15 -23.37
*UB25X
FJ39Y
0060 1/15/16 -27.34
0060 7/15/16 -23.10
*FJ39Y'''

l = input.split('\n')
tag = None
out = []

for item in l:
    if tag == item.replace('*',''):
        tag = None
    elif tag:
        out.append(tag + ' ' + item)
    else:
        tag = item

print out
# ['UB25X 0060 4/22/16 -20.19', 'UB25X 0060 3/17/15 -23.37', 'FJ39Y 0060 1/15/16 -27.34', 'FJ39Y 0060 7/15/16 -23.10']

Answer 2

试试这个，将txt文件作为第一个参数：

#!/usr/bin/python3
# -*- coding: utf-8 -*-

import sys

file = sys.argv[1]
f = open(file, 'r')
prefix = None

for line in f:
    # continue if line is empty
    if not line.strip():
        continue
    # set prefix if it is not set and continue
    if prefix is None:
        prefix = line.strip()
        continue
    # unset prefix on given condition and continue
    if line.startswith('*' + prefix):
        prefix = None
        continue
    # if prefix is set and above does not apply print prefix plus line
    if prefix is not None:
        print(prefix + ' ' + line.strip())

f.close()

如何将文本文件中的第一行添加到以下行，直到满足条件然后重复？

2 个答案: