python 读文件readline ,如何读一行删除一行
python处理文件处理想要读一行删一行
回答:
python3">import shutilcounter = 1
while True:
with open('test.txt') as fin:
line = fin.readline()
if len(line) == 0:
break
print(line.strip())
with open(f'delete-{counter}-line.txt', 'w+') as fout:
shutil.copyfileobj(fin, fout)
shutil.copy(f'delete-{counter}-line.txt', 'test.txt')
counter += 1
所以你到底想干啥?
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