Python从输入文件读取行并将其写回文件

Question

我想逐行读取输入文件，然后修改一行并将更改写回同一文件

问题是回写后，我失去了返回该行的权限，并且所有数据都放在一行中

open(bludescFilePath, 'a+') as blu:

blu_file_in_lines = blu.readlines()

for line in blu_file_in_lines:
                    if "Length" in line:
                        blu_file_in_lines[13] = line.replace("0x8000",str(size))

 with open(bludescFilePath, 'w') as blu:
                blu.write(str(blu_file_in_lines))

Answer 1

编辑

好的，缺少的是for循环。

with open(bludescFilePath, 'w') as blu:
    for line in blu_file_in_lines:
        blu.write(str(line))