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]
7 }: X" Z3 A  J% fto setup
  clear-all
  setup-patches
$ ~9 R5 o6 t. E/ W( J4 p  create-turtles 100
1 \4 I0 i8 X- k9 M4 d" h  do-plots
  ask turtles [ setxy random-xcor random-ycor ]
: e' n' K, j' z( Lend
to go
! E) q' x. T2 V  move-turtles
  eat-grass
  reproduce
# `! d: o4 F+ X7 m  check-death
6 `) j0 C. k) n# f! M3 U, R! T. o  regrow-grass
  do-plots
end
to move-turtles
# c& M- P0 D) d; n" w, m2 U' e! Y. ?" x2 ~  ask turtles [
    right random 360
- \7 E( a- ?- h% V    forward 1
    set energy energy - 1
    ]
* z! y" y* w( ^. }% m3 Xend
to setup-patches
; r, Z  S  T* a: }! M: t  ask patches [ set pcolor green ]
end
9 d% y, l9 i2 J( l: h  k' vto setup-turtles
  create-turtles 100
  G  c9 k$ v/ }! V  ask turtles [ setxy random-xcor random-ycor ]
end
to eat-grass
/ K: e9 u, i- ^, _% g0 Y4 g% L! D  ask turtles [
    if pcolor = green [
      set pcolor black
! O, G) N( e# |" a* O5 N      set energy (energy + 10)
      ]
    ifelse show-energy?
      [ set label energy ]
      [ set label "" ]
    ]
end
to reproduce
" H+ ?6 U1 b1 n, I1 G4 Z- ?' {' z  ask turtles [
0 _# U! _  G; n* d    if energy > 50 [
      set energy energy - 50
8 c1 ?" P  j) _9 M  \      hatch 1 [ set energy 50 ]
      ]
. i+ `* |2 l0 A% s/ I1 C    ]
end
to check-death
  ask turtles [
0 V6 x! d" U; C# H    if energy <= 0 [ die ]
    ]
end
to regrow-grass
( k* Z  Y" B+ R  ask patches [
    if random 100 < 3 [ set pcolor green ]
    ]
end
( i& |  n9 E& P) @to do-plots
  set-current-plot "Totals"
9 D2 Z5 v1 b) e/ i& O/ s- O' w  set-current-plot-pen "turtles"
, Z; O3 r& `0 J4 z. B5 O  plot count turtles
  set-current-plot-pen "grass"
  plot count patches with [pcolor = green]
- I' m- p2 r3 Q( @9 e1 \6 n0 Eend
" |/ _. y2 W* d) y5 ^可是运行时提示no such plot: "Totals"
error while observer running SET-CURRENT-PLOT
* p  l' V5 D  ]+ e6 V0 K$ O  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

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。