Python-使用清单写入txt档案 [英] Python - write txt file with a list
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问题描述
我有一个test.txt,其中包含:
I have a test.txt that contains:
-
anything1
go
-
anything2
go
我想用列表和一些查询替换-".这是我的代码:
And i wanna replace the '-' with my list and some query. Here is my code:
x = ['1', '2']
i=0
with open("test.txt", "r") as fin:
with open("result.txt", "w") as fout:
for line in fin:
fout.write(line.replace('-','\nuse '+(str(x[i]))+'\ngo\n'))
i+=i
但是我的结果是:
use 1
go
anything1
go
use 1
go
anything2
go
我需要第二个用途"是用途2",而不是用途1".
I need that the second 'use' be 'use 2' and not 'use 1'.
我该如何解决?
谢谢
推荐答案
尝试以下方法:
i = (x for x in ['1', '2'])
with open("test.txt") as fin, open("result.txt", "w") as fout:
for line in fin:
if line.startswith('-'):
fout.write(line.replace('-', '\nuse {}\ngo\n'.format(next(i))))
else:
fout.write(line)
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