自学中文手册时遇到了问题，求高手解答

newlove

我编的程序如下turtles-own [energy]
to setup
5 n1 O: F5 n$ N- S5 y* x$ f  clear-all
  setup-patches
; D, T7 x/ ?: B0 c  create-turtles 100
; T& s, D+ P* B" t  do-plots
  ask turtles [ setxy random-xcor random-ycor ]
end
to go
  move-turtles
  eat-grass
  reproduce
  check-death
  regrow-grass
' z( ^5 _* m" C" l  do-plots
: `/ B; e. ?" j, Z- Bend
to move-turtles
- J1 [. l1 x/ K- m, C; ^  ask turtles [
    right random 360
    forward 1
    set energy energy - 1
    ]
end
+ b; y; V! u2 h9 P! p& _$ t5 v4 ?" t' \to setup-patches
3 A4 K. N: o' J; d) a  ask patches [ set pcolor green ]
8 `3 [/ b4 m; K8 Fend
to setup-turtles
$ V/ V1 ]  m! q8 G; q. L/ {  create-turtles 100
  ask turtles [ setxy random-xcor random-ycor ]
end
to eat-grass
  ask turtles [
4 u5 w0 q! q2 V7 V$ W    if pcolor = green [
2 c5 ]2 b1 N& u! O' G& x      set pcolor black
$ w/ U3 }) _- ?' c      set energy (energy + 10)
      ]
  ^  C) E( P, X    ifelse show-energy?
      [ set label energy ]
; r: `4 N1 b* D' W% L8 I/ z1 e5 n      [ set label "" ]
    ]
* J) s0 |' N, hend
to reproduce
  ask turtles [
$ ~' ~$ O2 j+ n) X+ j* Y7 P+ Q    if energy > 50 [
$ }, V: R) a) z! @, M      set energy energy - 50
# n: }  Z9 o4 l0 A$ S3 C      hatch 1 [ set energy 50 ]
      ]
    ]
( T7 R% u: i  d4 ?end
8 x/ R$ O0 J, Rto check-death
/ N' e; q" c/ i! ^/ F  ask turtles [
    if energy <= 0 [ die ]
) U$ }: F- O5 \$ i    ]
end
# i- ]6 o9 U1 G- V; \6 h1 u. Zto regrow-grass
  ask patches [
    if random 100 < 3 [ set pcolor green ]
    ]
end
to do-plots
' F! I/ P3 b" o) c5 l- d- y* w1 m  set-current-plot "Totals"
3 n) W, ]2 a5 Q$ u  set-current-plot-pen "turtles"
6 j% N1 _2 L2 O9 y0 B. {  plot count turtles
  set-current-plot-pen "grass"
  plot count patches with [pcolor = green]
end
. F0 S4 R9 }* _9 h可是运行时提示no such plot: "Totals"
- M! g: l: u; D) q( A9 Nerror while observer running SET-CURRENT-PLOT
  called by procedure DO-PLOTS
  called by procedure SETUP
  called by 按钮 'setup'
求大神解答啊

emlyn

no such plot: "Totals"，就是说你的界面里没有叫做Totals的绘图框

emlyn

建一个叫做叫做Totals的绘图框就行了

newlove

emlyn 发表于 2013-5-29 00:26
建一个叫做叫做Totals的绘图框就行了

- ]* N# L1 t/ G. v- t哦，知道了，虽然自己应经找到问题了，不过还是谢谢哈

pichan

你也可以直接再界面页创建“绘图”，然后设置时钟(ticks)，每一步画一次，不用自己操心。