ArdentMan

@Echo Off&SetLocalEnableDelayedExpansion
Set "MyPath=请填写为自己桌面的绝对路径"
Cd /d "%MyPath%"
For /F "delims=" %%a In ('Dir /b *.txt') Do (
  (For /F "tokens=1* delims=:" %%b In ('Findstr /n .* %%a') Do (
    Set "Str=%%b"
    If %%b equ 3 Set "Str=!Str:69CV350=69CV380!"
    Echo,!Str!
  ))>$
  Move $ "%%a"
)
复制代码