to setup 1 w+ P- F# C; {! Y" r clear-all3 s. b' e% L, s$ v8 _5 S8 l2 _5 z
crt 5. g M: F% p. x9 x; x# v
absolute-value 10 ' T8 p! I' \. S% P( T
end 4 [( V. w" }5 n+ |to-report absolute-value [ number ] : |& M5 }8 \! b' p4 d# X! b3 b) x9 \ ifelse number >= 0 [report number] [report (- number)]' n$ C6 M4 C, w
end7 p$ Q, B, s- c2 ]9 y
check时出错
发表于 2008-4-16 09:40:56
楼主