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
) n- m* z5 `" L" P: N/ F: z  h/ w8 S  clear-all
  setup-patches
  create-turtles 100
  do-plots
  ask turtles [ setxy random-xcor random-ycor ]
end
to go
) \/ S. v4 P  L: L: O$ t  move-turtles
% z$ A! r5 U4 ~# o0 ^" F  eat-grass
3 S6 k/ C  ]1 k5 J8 D  reproduce
  check-death
" q& R$ f  I6 f; E3 Y% }: W5 Y  regrow-grass
, E# }- l/ d4 X# ^- Z  do-plots
end
to move-turtles
  ask turtles [
- M1 `! v" ^$ Y% U( L3 {    right random 360
' H3 r/ e. Q2 h& w) O4 _9 g    forward 1
    set energy energy - 1
    ]
end
3 {) m; l# L" H4 f: sto setup-patches
  ask patches [ set pcolor green ]
end
to setup-turtles
6 @6 @  j$ p4 I3 N( J5 e  I& `  create-turtles 100
* K' m+ ~5 `- a7 f2 I) G  ask turtles [ setxy random-xcor random-ycor ]
end
/ [* H6 P7 {, Sto eat-grass
  ask turtles [
    if pcolor = green [
1 G& v$ \9 ?5 k8 j8 t% V, x      set pcolor black
4 E' i0 H5 d  m/ `8 G      set energy (energy + 10)
      ]
, U7 l& E6 ^) Q& e- ~5 o) e    ifelse show-energy?
- n) Q& L& b+ X# @( I# ?0 A; m      [ set label energy ]
      [ set label "" ]
    ]
$ A$ H; m) j- V) n: q  `end
% z9 [! T1 c8 T7 x% ato reproduce
7 q2 p; O9 x" e  ask turtles [
    if energy > 50 [
8 |$ ^* h+ r, w; |8 O+ o      set energy energy - 50
' M) u5 _+ }  b      hatch 1 [ set energy 50 ]
      ]
, ^9 ]# }8 {9 l    ]
2 Q8 E  q5 M4 ^% K) R% Lend
to check-death
& A$ c. J. ]2 r1 B% Z  ask turtles [
  i& R  t0 J: `( `* a4 s3 B    if energy <= 0 [ die ]
    ]
end
to regrow-grass
) y! v7 o& R) o  ask patches [
    if random 100 < 3 [ set pcolor green ]
    ]
) {  T9 \4 B/ v9 G5 vend
: D7 A: I' q3 [- u1 v. qto do-plots
! ^8 _4 R2 B2 M5 a% Q+ `1 G  set-current-plot "Totals"
  set-current-plot-pen "turtles"
! `5 z! E' E0 M) D  plot count turtles
  set-current-plot-pen "grass"
; j; W) i6 Q9 a$ B  plot count patches with [pcolor = green]
end
5 t2 G% W" z8 o( k+ {0 E. m# l2 c可是运行时提示no such plot: "Totals"
error 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
7 k* w0 ]8 \  O$ q, @0 A6 z/ ~3 y建一个叫做叫做Totals的绘图框就行了

3 x+ T% v" Y4 A' W3 B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。