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]
3 n+ ?9 k# w) B: w% a+ K: ]to setup
7 \. ^& I- U4 y4 g2 b1 V+ v  clear-all
" e1 I4 Y6 q9 L; Z& y' b  setup-patches
  create-turtles 100
  do-plots
  ask turtles [ setxy random-xcor random-ycor ]
end
to go
  move-turtles
  eat-grass
2 E' F/ J" L) S  reproduce
+ ?5 p6 y& [2 u3 V$ b1 z1 w; K  check-death
! F: P7 u7 c* H' ?% [& w  regrow-grass
. M" I$ O+ d) g8 O; H; F+ I7 i/ ?9 h  do-plots
end
' q8 l4 T1 Y/ F9 u. pto move-turtles
7 X# b+ L, q2 m7 }1 G! h/ y  ask turtles [
1 q* r3 A, Q$ \0 V# a0 a5 r    right random 360
$ t* H8 [. V# f" t; N9 t    forward 1
, M# |1 Y) T( O2 X4 P' v! H, h, p    set energy energy - 1
8 v2 x- d( E7 Z4 c. ]6 A$ c    ]
$ \/ L  P4 @( t: k1 K" Tend
to setup-patches
  ask patches [ set pcolor green ]
end
& P. a7 }' ~" I  v, }, Nto setup-turtles
  create-turtles 100
0 n  y/ |) s' W& z  ask turtles [ setxy random-xcor random-ycor ]
end
to eat-grass
  ask turtles [
  z' S' m0 u" N" {3 i    if pcolor = green [
" {2 o2 ?$ G) }/ R      set pcolor black
' N; ~1 X) M9 }5 K      set energy (energy + 10)
      ]
2 G* F% A# t' v" b    ifelse show-energy?
+ F0 R/ N, P: J# S$ @. h6 X/ E      [ set label energy ]
      [ set label "" ]
6 K5 B* I# [7 C6 P8 ]) e    ]
4 T# U/ Q8 i' f/ x0 @end
4 J; k' A+ s7 r8 b- ]to reproduce
  ask turtles [
! }8 G- Y% M$ s3 i    if energy > 50 [
      set energy energy - 50
+ ^3 _6 h( F1 t$ ^      hatch 1 [ set energy 50 ]
      ]
" R  X+ t% Q9 `" T* d) \    ]
end
to check-death
  ask turtles [
    if energy <= 0 [ die ]
    ]
end
to regrow-grass
" F7 P) E& w2 k4 e* ]! o  ask patches [
    if random 100 < 3 [ set pcolor green ]
0 }+ J9 D, d' l5 C9 g6 c    ]
( \4 U$ R4 g0 N2 j) b+ M; xend
to do-plots
  x2 Y/ ]3 j8 \' `3 Z. ^# n  set-current-plot "Totals"
9 h- {! I/ S( k5 H5 Z' k7 L) N) n  set-current-plot-pen "turtles"
  plot count turtles
  set-current-plot-pen "grass"
) k. J2 s! `2 l$ c6 S1 Y  plot count patches with [pcolor = green]
end
可是运行时提示no such plot: "Totals"
error while observer running SET-CURRENT-PLOT
0 q4 p# O* [6 U+ \* g' e7 j  called by procedure DO-PLOTS
  called by procedure SETUP
  called by 按钮 'setup'
. V. w% d8 W: F$ M/ w" Z9 [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
- |! T3 w$ \& s! P- ?8 A  n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。