When the operating system moves a file from one directory to another on the same drive, it merely relocates the file's entry in the disk's table of contents.
当文件从一个目录被移动到同一个硬盘下的另一个目录下时，操作系统仅仅是修改一下该硬盘的目录表，并不做实际的文件删除和重写文件操作。
When the operating system moves a file from one directory to another on the same drive, it merely relocates the file's entry in the disk's table of contents.
当文件从一个目录被移动到同一个硬盘下的另一个目录下时，操作系统仅仅是修改一下该硬盘的目录表，并不做实际的文件删除和重写文件操作。
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