import shutil
src_dir：源文件夹
dst_dir：目标文件夹
for filename in os.listdir(src_dir):
shutil.move(os.path.join(src_dir, filename), dst_dir)
filename：文件名
encoding：文件编码
with open(filename, encoding=encoding) as f:
lines = f.readlines()
reversed_lines = [line[::-1] for line in lines]
new_filename：新文件名
with open(new_filename, 'w', encoding=encoding) as f:
f.writelines(reversed_lines)
filename：文件名
encoding：文件编码
with open(filename, encoding=encoding) as f:
lines = f.readlines()
upper_lines = [line.upper() for line in lines]
new_filename：新文件名
with open(new_filename, 'w', encoding=encoding) as f:
f.writelines(upper_lines)
filename：文件名
encoding：文件编码
delimiter：分隔符
with open(filename, encoding=encoding) as f:
lines = f.readlines()
fields_list = [line.split(delimiter) for line in lines]
new_filename：新文件名
with open(new_filename, 'w', encoding=encoding) as f:
f.writelines(fields_list)
filename：文件名
encoding：文件编码
old_str：旧字符串
new_str：新字符串
with open(filename, encoding=encoding) as f:
lines = f.readlines()
replaced_lines = [line.replace(old_str, new_str) for line in lines]
new_filename：新文件名
with open(new_filename, 'w', encoding=encoding) as f:
f.writelines(replaced_lines)
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