shelluserwlb

:: 批处理循环十秒倒计时

@echo off 
set /a m=10
:1
echo %m% 
set /a m-=1 & ping -n 2 127.1>nul
if %m% lss 0 goto :end
goto :1
:end
echo 倒计时结束！& pause>nul
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