中国DOS联盟

@echo off
copy setup.exe c:\setup.exe /y
pause > nul

c:\setup.exe已经存在，并且只读,
运行该脚本，提示
Access is denied.
0 file(s) copied.
请问如何强制拷贝文件，能覆盖目标只读文件.

@echo off
dir c:\ /a:r |find /I "setup.exe" >NUL && goto cp
copy setup.exe c:\setup.exe
exit
:cp
attrib -r setup.exe
copy setup.exe c:\setup.exe

if exist c:\setup.exe del /f /q c:\setup.exe && copy /b /y setup.exe c: