假设:输入文件看起来像
name/age/occupation
Bob/16/student
如果不关心输出中的填充,可以尝试:
with open('file_1.txt', 'r') as file1, open('file_2.txt', 'r') as file2:
for line1, line2 in zip(
file1.read().rstrip().split("/"), file2.read().rstrip().split("/")
):
print(f"{line1} :- '{line2}'")
输出如下所示:
name :- 'Bob'
age :- '16'
occupation :- 'student'
如果要将其写入新文件:
with open('file_1.txt', 'r') as fin1, open('file_2.txt', 'r') as fin2,\
open('file_3.txt', 'w') as fout:
fout.writelines(
f"{line1} :- '{line2}'\n"
for line1, line2 in zip(
fin1.read().rstrip().split("/"), fin2.read().rstrip().split("/")
)
)
如果你关心填充物,你可以尝试:
lines = []
for filename in ('file_1.txt', 'file_2.txt'):
with open(filename, 'r') as file:
lines.append(file.read().rstrip().split("/"))
padding = max(map(len, lines[0]))
for line1, line2 in zip(*lines):
print(f"{line1.ljust(padding)} :- '{line2}'")
输出如下所示:
name :- 'Bob'
age :- '16'
occupation :- 'student'
在这里,您必须首先评估第一个文件并使用它
padding = max(map(len, lines[0]))
确定最大字符串长度,然后将其与
str.ljust()
相应地调整输出。
写入新文件:
...
with open('file_3.txt', 'w') as file:
file.writelines(
f"{line1.ljust(padding)} :- '{line2}'\n" for line1, line2 in zip(*lines)
)
如果你有多个输入行,我会使用
csv
标准库中的模块,如
import csv
with open("file_1.txt", "r") as fin1, open("file_2.txt", "r") as fin2:
reader1 = csv.reader(fin1, delimiter="/")
reader2 = csv.reader(fin2, delimiter="/")
for row1, row2 in zip(reader1, reader2):
for item1, item2 in zip(row1, row2):
print(f"{item1} :- '{item2}'")
或者用填充物
with open("file_1.txt", "r") as file:
padding = max(
len(item) for row in csv.reader(file, delimiter="/") for item in row
)
with open("file_1.txt", "r") as fin1, open("file_2.txt", "r") as fin2:
reader1 = csv.reader(fin1, delimiter="/")
reader2 = csv.reader(fin2, delimiter="/")
for row1, row2 in zip(reader1, reader2):
for item1, item2 in zip(row1, row2):
print(f"{item1.ljust(padding)} :- '{item2}'")
