Copy the contents of one folder to another

Note:
Folder a contains raw data. Contains 5 folders, each folder has a ".txt" file.
Folder b contains 3 empty folders.
There is an empty folder in folder c.

The task to be realized: Find the corresponding original data of the file in b in a, and then store it in folder c.

import os
import shutil

a = r'D:\bmi结果\zhedang\a'
b = r'D:\bmi结果\zhedang\b'
c = r'D:\bmi结果\zhedang\c'

for file_b in os.listdir(b):
#     img_path=os.path.join(path,file,name)
    for file_a in os.listdir(a):
        if file_a == file_b:
            path_c = os.path.join(c,file_b)
            path_a = os.path.join(a,file_b)
            if not os.path.exists(path_c):
#                 os.makedirs(path_c)
                shutil.copytree(path_a, path_c)  


print('copy dir finished!')```

执行代码后c文件夹中的内容：
![在这里插入图片描述](https://img-blog.csdnimg.cn/e421c03825fb40b9ada85a91d37a7903.jpeg)