用 makedirs做

`makedirs`是Python的os模块提供的另一个用于创建多级目录的方法，相较于`mkdir`，它可以一次性创建包含父目录的所有层级。如果中间的某个目录不存在，它会自动创建。如果你想要使用`makedirs`来完成之前提到的任务，你可以这样做：

import os

student_id = "199"
target_directory = "/usr/" + student_id

try:
    os.makedirs(target_directory, exist_ok=True)
    print(f"Directory {target_directory} created successfully.")
except Exception as e:
    print(f"Failed to create the directory due to error: {str(e)}")

# 查看目标目录是否存在并列出其内容
if os.path.exists(target_directory):
    files = os.listdir(target_directory)
    if files:
        print(f"Files and directories in {target_directory}:")
        for file in files:
            print(file)
    else:
        print(f"{target_directory} is empty.")
else:
    print(f"{target_directory} does not exist or you don't have permission to access it.")