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@echo off&setlocal enabledelayedexpansion for /f "tokens=3" %%i in ('dir /s /-c "123\"') do ( set str1=!str! set str=%%i echo %str1% ) if %str1% LSS 104857600 (goto :ABC) else (goto :YOU) :ABC ren 555.bat 55555555.bat goto :eof :YOU ren 666.bat 66666666.bat复制代码