- @echo off
- :lop
- cls
- set "n="
- set /p n=输入你想计算的数字n(范围:1~65535)=:
-
- if not defined n goto lop
- for /f "tokens=* delims=0123456789" %%a in ("%n%") do if "%%a" neq "" goto lop
- if %n% gtr 65535 goto lop
-
- set 位数=%n%54321
- title %n% 的位数是 %位数:~5,1%
-
- set sum=0
- for /l %%i in (1 1 %n%) do (set /a sum+=%%i)
- echo 1+2+....+n=%sum%
- pause>nul
- goto lop
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[ 本帖最后由 tireless 于 2009-6-2 21:19 编辑 ] |