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
  clear-all
  setup-patches
  create-turtles 100
  do-plots
2 {; S8 o) l! `7 T; ~  U2 ?4 V, V8 N  ask turtles [ setxy random-xcor random-ycor ]
4 F4 t1 ?9 Z' ^/ Vend
to go
8 \; O& E1 C2 N  move-turtles
  eat-grass
  reproduce
  check-death
& ?; _' b1 S2 m0 U7 }5 H5 s  regrow-grass
  do-plots
0 e5 D- p) S1 l  w1 G9 u' Pend
to move-turtles
  ask turtles [
    right random 360
    forward 1
' t  ]2 ^1 j$ \; z$ n1 \7 c    set energy energy - 1
    ]
% Y7 u% W9 `4 p3 Dend
to setup-patches
  ask patches [ set pcolor green ]
end
; a, a9 k$ M& y. ]to setup-turtles
: w7 Z9 r0 d# V/ i3 G5 Z  create-turtles 100
  ask turtles [ setxy random-xcor random-ycor ]
end
to eat-grass
- B  f; `0 w! W) Q) p1 j  ask turtles [
    if pcolor = green [
9 X0 _$ B+ R: O4 f4 l$ x      set pcolor black
      set energy (energy + 10)
( d7 O+ w& _+ f( {8 ?6 ]      ]
    ifelse show-energy?
: U% [- w. }) B2 Q/ }7 B5 {2 r      [ set label energy ]
+ g1 \& o% d) _      [ set label "" ]
    ]
end
to reproduce
  ask turtles [
( o. Z0 l, T: |& m7 S. B% @    if energy > 50 [
  X' H+ Z) M0 D      set energy energy - 50
      hatch 1 [ set energy 50 ]
% z! ^0 L" N( ~+ S      ]
    ]
& y* H7 l& s+ `end
to check-death
' F& P4 f# G. [* s  y  ask turtles [
$ J9 u0 X* v" }% i( p    if energy <= 0 [ die ]
    ]
end
to regrow-grass
  ask patches [
, X8 Z$ [1 q2 T. }    if random 100 < 3 [ set pcolor green ]
2 d* P3 _* j& x' I' r- i    ]
end
to do-plots
3 O; E/ b6 P/ F0 h/ |/ Z  set-current-plot "Totals"
, K' k) J  I+ ?' Y$ G  set-current-plot-pen "turtles"
# I4 R: ~4 E' K8 T# ]6 Y* K  plot count turtles
  set-current-plot-pen "grass"
  plot count patches with [pcolor = green]
) q/ N2 u, b0 kend
6 E( z, b; r; |7 u. g可是运行时提示no such plot: "Totals"
( L: Y2 T$ ?& ^* ?+ Y5 Herror while observer running SET-CURRENT-PLOT
8 F6 H, \, f+ W9 c  called by procedure DO-PLOTS
  called by procedure SETUP
3 a- o' s) j$ \) Z+ i  called by 按钮 'setup'
( G+ c6 w" p; B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。