Question

我有＆＃34; transactions.txt＆＃34;像这样的文件：

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>

并且功能如下：

1:5:iznos:15.02.2017.:usser
2:2:iznos:17.02.2017.:usser2
3:3:iznos:3.04.2017.:usser2
4:3:iznos:3.04.2017.:useer
5:7:iznos:5.05.2017.:usser2
6:3:iznos:16.06.2017.:usser3
7:8:iznos:18.06.2017.:usser

如何在两个输入日期之间打印交易？

P.S稍后我必须输入两个日期和用户名，然后仅在某个用户名的两个日期之间打印交易。所以，如果有人也可以帮助我......：）

Answer 1

你可以尝试这样的事情：

from csv import reader
from io import StringIO  
from datetime import datetime


text = '''1:5:iznos:15.02.2017.:usser
2:2:iznos:17.02.2017.:usser2
3:3:iznos:3.04.2017.:usser2
4:3:iznos:3.04.2017.:useer
5:7:iznos:5.05.2017.:usser2
6:3:iznos:16.06.2017.:usser3
7:8:iznos:18.06.2017.:usser'''


from_date = datetime(2017, 4, 3)
to_date = datetime(2017, 5, 5)

# with open('data.txt', 'r') as file
with StringIO(text) as file:

    data = reader(file, delimiter=':')

    for line in data:
        date = datetime.strptime(line[3], '%d.%m.%Y.')

        if from_date <= date <= to_date:
            print(line)

Answer 2

首先，您需要读取数据;第二，你需要从每一行提取日期;第三，你需要检查日期是否在想要的范围内;所以解决方案是：

with open('transactions.txt') as f:
    for line in f:
        l_date = date.strptime(line.split(':')[3], "%d.%m.%Y.")
        if date1 < l_date < date2:
            print line

从txt文件Python打印两个日期之间的行

2 个答案: