建名为temp的子目录，在temp目录下创建两个文件：temp1.txt、temp2.txt，然后列表显示指定目录：重命名temp1.txt为temp.txt，然后列表显示temp目录；删除文件temp2.txt，然后列表显示temp目录。-Built subdirectory named temp, create the two files: temp1.txt, the temp2.txt, temp directory and then list the specified directory: rename temp1.txt file temp.txt then list shows the temp directory　delete files temp2 . txt, and then list shows the temp directory.