可参考下列语法在autoexec.bat中加入命令行:
C:
CD \
IF EXIST file1.exe GOTO done ;如果file1.exe 文件存在,则跳转到done执行
D:
CD \
IF EXIST file1.exe GOTO done
E:
CD \
IF EXIST file1.exe GOTO done
F:
CD \
IF EXIST file1.exe GOTO done
G:
CD \
IF EXIST file1.exe GOTO done
ECHO The file1.exe dose not exist!
GOTO end :done file1.exe :end