如何在目录中找到最旧和最新的文件？

import os

def find_newest_file(directory):
    files = [os.path.join(directory, f) for f in os.listdir(directory) if os.path.isfile(os.path.join(directory, f))]
    return max(files, key=os.path.getctime)

# 使用示例
newest_file = find_newest_file('/path/to/your/directory')
print(f"The newest file is: {newest_file}")

import os

def find_oldest_file(directory):
    files = [os.path.join(directory, f) for f in os.listdir(directory) if os.path.isfile(os.path.join(directory, f))]
    return min(files, key=os.path.getctime)

# 使用示例
oldest_file = find_oldest_file('/path/to/your/directory')
print(f"The oldest file is: {oldest_file}")

if not files:
    return None  # 或者抛出自定义异常

real_files = [os.path.realpath(os.path.join(directory, f)) for f in os.listdir(directory) if os.path.isfile(os.path.join(directory, f))]