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四级士官
@echo off setlocal enabledelayedexpansion set a=10 for /l %%i in (1,1,10) do ( set a=11 set /a a-=%%i echo !a! ) pause复制代码
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@echo off&cls for /l %%i in (10,-1,1) do ( echo 倒计10秒:%%i ping -n 2 127.1>nul cls ) pause>nul复制代码