合并多个文件夹中的所有txt文件或将所有文件放入一个文件夹中

import os
import shutil

source_folders = ['folder1', 'folder2', 'folder3']
target_folder = 'target_folder'

if not os.path.exists(target_folder):
    os.makedirs(target_folder)

for folder in source_folders:
    for root, dirs, files in os.walk(folder):
        for file in files:
            if file.endswith('.txt'):
                src_file_path = os.path.join(root, file)
                dst_file_path = os.path.join(target_folder, file)
                shutil.copy2(src_file_path, dst_file_path)

import os
import shutil

source_folders = ['folder1', 'folder2', 'folder3']
target_folder = 'target_folder'

if not os.path.exists(target_folder):
    os.makedirs(target_folder)

for folder in source_folders:
    for root, dirs, files in os.walk(folder):
        for file in files:
            if file.endswith('.txt'):
                src_file_path = os.path.join(root, file)
                dst_file_path = os.path.join(target_folder, file)
                if os.path.exists(dst_file_path):
                    base, ext = os.path.splitext(dst_file_path)
                    dst_file_path = f"{base}_copy{ext}"
                shutil.copy2(src_file_path, dst_file_path)