File operation
import os def create_file(file_name, content=""): with open(file_name, 'w') as file: file.write(content) print(f"File '{file_name}' created successfully.") def delete_file(file_name): if os.path.exists(file_name): os.remove(file_name) print(f"File '{file_name}' deleted successfully.") else: print(f"File '{file_name}' does not exist.") def update_file(file_name, content): if os.path.exists(file_name): with open(file_name, 'a') as file: file.write(content) print(f"File '{file_name}' updated successfully.") else: print(f"File '{file_name}' does not exist. Create the file first.") def invalid_operation(*args): print("Invalid operation selected.") # Switch-case-...