welllib

@echo off
color 1a
:start
set /p i=Input Start NO: 
set /p j=Input Stop NO: 
set /p k=Input Interval: 
for /l %%i in (%i%,%k%,%j%) do (
    set /a sum=%%i+sum
)
echo %sum%
set /p ch=Try again? Y/N 
if /i %ch%==Y (goto start) else (goto end)
pause
复制代码