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DOS批处理 & 脚本技术（批处理室） » [Solved] Question about using a batch file to calculate the sum of numbers within 100

Floor1　icyheart	Posted 2007-09-06 10:13
中级用户　Posts 81　Credits 216
I want to use a batch file to calculate the sum of numbers within 100, but I just couldn't figure it out. I thought about using a loop for a long time, but got no results, none of it worked, so I'm here to ask everyone for advice. [ Last edited by icyheart on 2007-9-6 at 10:51 AM ]

Floor3　icyheart	Posted 2007-09-06 10:45
中级用户　Posts 81　Credits 216
Thanks, I never thought about it the other way around. What I kept thinking of was for /l %%i in (1,1,100)........ I kept thinking along those lines and just couldn't get it out, hehe thanks

Floor4　ccwan	Posted 2007-09-06 10:47
金牌会员　Posts 1,160　Credits 2,725　From 河北廊坊
Can't it work in the forward direction?

Floor5　icyheart	Posted 2007-09-06 10:50
中级用户　Posts 81　Credits 216
@echo off for /l %%i in (1,1,100) do ( set /a sum+=%%i ) echo %sum% By analogy, this works too, hehe

Floor6　jmz573515	Posted 2007-09-07 07:39
银牌会员　Posts 464　Credits 1,212
A dumb method, writing one... @echo off :loop set /a a+=1 set /a s=%s%+%a% if %a%==100 echo %s% & pause & exit goto loop