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我疯了。baidu，我xxxx

在cmd命令行(dos)下输入  copy /? 然后点Enter键，你就会看到一下内容

COPY [/D] [/V] [/N] [/Y | /-Y] [/Z] [/L] [/A | /B ] source [/A | /B]
[+ source [/A | /B] [+ ...]] [destination [/A | /B]]

source       Specifies the file or files to be copied.
/A           Indicates an ASCII text file.
/B           Indicates a binary file.
/D           Allow the destination file to be created decrypted
destination  Specifies the directory and/or filename for the new file(s).
/V           Verifies that new files are written correctly.
/N           Uses short filename, if available, when copying a file with a
non-8dot3 name.
/Y           Suppresses prompting to confirm you want to overwrite an
existing destination file.
/-Y          Causes prompting to confirm you want to overwrite an
existing destination file.
/Z           Copies networked files in restartable mode.
/L           If the source is a symbolic link, copy the link to the target
instead of the actual file the source link points to.

The switch /Y may be preset in the COPYCMD environment variable.
This may be overridden with /-Y on the command line.  Default is
to prompt on overwrites unless COPY command is being executed from
within a batch script.

To append files, specify a single file for destination, but multiple files
for source (using wildcards or file1+file2+file3 format).

如果看不明白就算了，还是用windows的copy吧