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
9 H/ U- r1 a% S3 D" H  clear-all
  setup-patches
  create-turtles 100
  do-plots
  ask turtles [ setxy random-xcor random-ycor ]
end
to go
  move-turtles
# u  D6 U! A0 T# x) t  ?  eat-grass
7 M) t( ]2 S2 o1 H% ]5 y) l  reproduce
+ Z- \  W# [1 s( }" A6 e  check-death
* `; V6 F5 F9 L$ n5 h0 G  regrow-grass
  do-plots
end
6 v# f6 ^2 O) `' ?to move-turtles
3 q' _; d% _9 c  ask turtles [
5 D' D2 M/ x7 H# E! j" m2 B    right random 360
    forward 1
" H. Q. l7 k3 P1 b6 X! T0 I    set energy energy - 1
3 k/ w7 W* L* f+ P7 ~    ]
# |- S. R& S8 send
to setup-patches
  ask patches [ set pcolor green ]
end
to setup-turtles
  create-turtles 100
& \8 j, v- m2 ~4 [) T+ n  ask turtles [ setxy random-xcor random-ycor ]
/ L, w' v8 y1 j7 mend
* g' d4 d+ t- @to eat-grass
) e3 q' }, a2 S+ J; n: o  ask turtles [
8 T2 O: y3 M' p: _    if pcolor = green [
      set pcolor black
+ w4 g! G2 I* W( ~3 z- l      set energy (energy + 10)
      ]
% C& y( o; `6 J3 R    ifelse show-energy?
6 T* [5 h4 P5 |- S+ ?# p      [ set label energy ]
5 [- q2 ~) F5 n  f8 i8 i- q      [ set label "" ]
    ]
end
, r! D; K% K6 j3 b% h* U  ?to reproduce
  U2 `5 u0 P( ?9 e3 z. }  ask turtles [
$ l  j- Z" f& `4 K    if energy > 50 [
      set energy energy - 50
      hatch 1 [ set energy 50 ]
' k% o0 O2 i# {# Y9 [+ U      ]
( W# C8 o$ w5 Y& R( k$ j    ]
end
to check-death
' D8 P* ]6 w9 L) K: _  Q  ask turtles [
    if energy <= 0 [ die ]
    ]
4 z1 \5 y$ x7 w1 vend
6 f1 w6 o8 g. A) _. Xto regrow-grass
  ask patches [
7 T# `" C; i* C    if random 100 < 3 [ set pcolor green ]
+ A& v9 c% x) W4 _) Q! I- e    ]
$ F! y- d- d) t5 o1 j& ~/ xend
to do-plots
  set-current-plot "Totals"
5 G! g  p, A; c" K0 o4 j4 j8 K6 K  set-current-plot-pen "turtles"
0 H6 H' ?; r9 h4 G  {: Z  plot count turtles
  set-current-plot-pen "grass"
! v) }. h9 l  w5 S  plot count patches with [pcolor = green]
end
- ?; W+ u; y5 l; C: G# [* c& D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
+ E/ E8 }+ V" N  called by 按钮 'setup'
& Y# U  \% a3 F9 T0 T5 g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
9 R2 I  J% K. n6 q7 N( h  U+ r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。