bat去掉文件名中固定字符

@echo off
Setlocal Enabledelayedexpansion
set  "str=【课出自】"

::ren "%%b" "22_%%b"

for /d %%a in (*) do (
    pushd "%%a"
    echo %%a
    for /f "delims=" %%i in ('dir /b *.*') do (echo %%i & set "var=%%i" & ren "%%i" "!var:%str%=!")
    popd
)

注意aaa.bat 文件要ansii码保存。不然处理不了中文的。