python 文件修改

修改'明月'->'太阳'

import os
with open(file='诗', mode='r', encoding='utf-8') as f, open(file='诗.bak', mode='w', encoding='utf-8') as f1:
    for line in f:
        if '明月' in line:
            line = line.replace('明月', '太阳')
        f1.write(line)
#
os.remove('诗')
os.rename('诗.bak', '诗')