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@echo off set n=0 for /l %%i in (1 1 100) do ( set /a n=n+%%i ) echo 1+2+3+4+...+100=%n% pause 第二题 @echo off set /p m= set n=0 for /l %%i in (1 1 %m%) do ( set /a n=n+%%i ) echo 1+2+3+4+...+%m%=%n% pause复制代码
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