python import os

def create_file: with open as file: file.write

def open_file: with open as file: content = file.read print

def readwritefile: with open as file: file.write with open as file: content = file.read print

def delete_file: if os.path.exists: os.remove

def create_directory: if not os.path.exists: os.makedirs

def list_directory: files = os.listdir for file in files: print

if name == "main": # 创建文件 createfile # 读写文件 readwritefile # 删除文件 deletefile

# 创建目录
create_directory
# 列出目录内容
list_directory
# 切换目录
change_directory
# 
列出目录内容
list_directory
# 删除目录
delete_directory