遍历每个目录以识别文件类型和每种类型的计数？

import os
from collections import defaultdict

def count_file_types(directory):
    file_types = defaultdict(int)

    for root, dirs, files in os.walk(directory):
        for file in files:
            file_path = os.path.join(root, file)
            file_extension = os.path.splitext(file_path)[1].lower()
            file_types[file_extension] += 1

    return file_types

directory = "/path/to/directory"
file_types = count_file_types(directory)

for file_type, count in file_types.items():
    print(f"File type: {file_type}, Count: {count}")