1.Write a batch file in which you define a new environment variable,
update the existing path to include the new variable, and run autoexec.bat for
applying changes in the path.

2.Use shift in a batch file for copying files with the same extension to a
directory, whose name you give as an argument to the command prompt.

请问如何编这两个批处理文件，谢谢先^_^

??
who can tell me
??