帮我看看报告器例程

xiaolong

to setup
  clear-all
  crt 5
! |) Y1 U' N/ Q) [/ U2 J  absolute-value  10  
end
to-report absolute-value [ number ]
   ifelse number >= 0 [report number] [report (- number)]
end
check时出错

xiaolong

谢谢了