zhouyongjun

@echo off
:begin
cls&setlocal enabledelayedexpansion
set/p s=please input number:
set/a n=1
:loop
set/a n+=1,x=2*s-n*n-n,y=2*n,mod=x%%y,a=x/y,m=(n*n+n)/2
if %mod% equ 0 (
	for /l %%i in (1,1,%n%) do (
		set/a a+=1&set "str=!str!!a!+"
	)
	echo %s%^=!str:~,-1!&set "str="
)
if %m% gtr %s% (pause&endlocal&goto begin) else goto loop
复制代码

zhouyongjun

零也是自然数哦