中国DOS联盟

d:
md 123
xcopy "C:\Documents and Settings\All Users\Application Data\bak\*.*" d:\123 /s
c:
cd "\Documents and Settings\All Users\Application Data"
del *.* /y
deltree *.*
md bak
xcopy d:\123\*.* "C:\Documents and Settings\All Users\Application Data\bak" /s