python - 对文件夹内文件处理

Question

对文件夹内的htm文件进行提取（卡在正则，因为文件夹内还有许多其他类型文件）

再对所有文件内容进行添加（每一个文件，从304到717）

添加后对文件进行重命名保存

Answer 1

In fact, if you simply search for files, you don’t need regular expressions. If you use the files in the folder, you can use the glob module to get a list of file names, such as

import glob
import shutil
file_list = glob.glob('*.htm')  # ['1.htm', '2.htm', '3.htm']

After getting the list, you can traverse the list and perform the processing you want

for i in file_list：
    old_fileName = i
    new_fileName = i + '.tmp'
    #另存为：
    shutil.copy(old_fileName, new_fileName)
    with open(new_fileName, 'r+') as f:
       #光标移动到末尾
       f.seek(0,2)
       f.write('\nwrite something')
       #f.flush()

Can additionally process and save files