先奉上正弦曲线的：

@echo off&setlocal enabledelayedexpansion ( :loop for %%i in (30 46 55 59 60 59 55 46 30 14 5 1 0 1 5 14) do ( for /l %%j in (1 1 %%i) do ( set "str=!str! " ) echo !str!#&set str= for /l %%i in (1 1 600) do qdj 2>nul ) goto loop )

根据悬崖之树的代码改造而成，可以说是真正的抛物线了。

函数解析式：f(x)=-x2-1

@echo off mode con lines=40 cols=80 setlocal enabledelayedexpansion set ctr=0 set "spc= " for %%a in (65 33 17 9 5 3 2 3 5 9 17 33 65) do ( set /a ctr=ctr+4 set ln=%%a for /l %%b in (1,1,!ln!) do ( echo= ) for /l %%b in (0,1,!ctr!) do ( set "spc=!spc! " ) echo !spc!O ping 127.1 -n 1 >nul ping 127.1 -n 1 >nul ping 127.1 -n 1 >nul set "spc= " if !ctr! gtr 56 goto:f cls ) :f pause>nul exit