python - 检查文件是否存在，如果不存在则创建新目录并在目录内创建文件并返回目录内的文件

Question

import os

def new_directory(directory, filename):
  # Before creating a new directory, check to see if it already exists

  # Create the new file inside of the new directory

  # Return the list of files in the new directory

print(new_directory("PythonPrograms", "script.py"))

Answer 1

下面的代码是不言自明的

import os
def new_directory(directory, filename):
  # Before creating a new directory, check to see if it already exists
  if os.path.isdir(directory) == False:
    os.mkdir(directory)

  # Create the new file inside of the new directory
  os.chdir(directory)
  with open (filename, "w") as file:
    pass
  os.chdir("..")
  # Return the list of files in the new directory
  return os.listdir(directory)

print(new_directory("PythonPrograms", "script.py"))