Question

from itertools import zip_longest 
f = open("all_info.txt", "a")
with open("all_info.txt") as f, open ("over_speeding.txt") as f1, open("fine.txt") as fine, open("all details.txt", "a") as everything:
     for fline, fineline in zip_longest (f, fine, fillvalue=""): 
          everything.write (fineline.strip() + "   ---   " + fline.strip() + "\n")      


          a = open("all details.txt", "r")
          for line in everything:#the problem
               everything.strip()
               if line in f1:
                    with ("fine1.txt", "a") as fine1:
                         fine1.write(line)

这只是我整个代码的一部分。我的整个代码需要车辆登记号，然后检查它是否是标准的。然后输入行驶1英里的时间，用于计算速度。

如果速度大于70英里/小时，登记号码和车辆行驶的速度将转到文件over_speeding.txt。然后其他条件确定详细信息去哪个文件（但这并不重要）。

我向你展示的代码将打开4个文件，其中fine.txt文件已经设置，over_speeding.txt文件从我的整个代码中获取数据。 all_info.txt文件将存储我整个代码的所有输入，然后使用zip_lingest模块将all_info.txt文件附加到fine.txt到all_details.txt文件。

我想要只选择超出的所有details.txt中的行，然后将其保存到fine1.txt

e.g。 fine.txt

all_info.txt

xxxxxxxx
dddddddd
aaaaaaaa
cccccccc

all_details.txt

11111 --- xxxxxxxx
22222 --- dddddddd
33333 --- aaaaaaaa
44444 --- cccccccc

如果

xxxxxxx

和

aaaaaaa

来自文件over_speeding.txt，然后是所有details.txt文件：

11111 --- xxxxxxxx
33333 --- aaaaaaaa

应保存到fine1.txt文件

Answer 1

我在理解您的代码时遇到了问题（当有人试图读取您的代码时，变量的名称确实没有用，至少对我而言），但我已经尝试按照您的预期重写它：

from itertools import zip_longest
#EDIT why open all_info.txt twice?
#f = open("all_info.txt", "a")
with open("all_info.txt", "a") as f,\
    open("over_speeding.txt") as f1,\
    open("fine.txt") as fine,\
    open("all details.txt", "a") as everything,\
    open("fine1.txt", "a") as fine1: # moved opening fine1 here

    for fline, fineline in zip_longest(f, fine, fillvalue=""):
        #EDIT
        line_to_write = fineline.strip() + "   ---   " + fline.strip() # so we don't need to write it twice
        everything.write(line_to_write + "\n") # write to file with newline
        if line_to_write in f1: # compare the line with values in over_speeding
            fine1.write(line_to_write)

因为它只是脚本的一部分而我没有所有数据我无法测试它。您的方法：将所有行写入所有内容，然后分别检查所有行。我的方法：获取行，写入并在同一循环中检查它。如果我理解你的代码，它应该做同样的事情。请询问或指出任何错误/误解。

如何在循环中附加的文件中打印特定行？

1 个答案: