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
) G/ v6 r$ B* U: X2 \  clear-all
$ d, U: }6 N7 z3 [/ X* P  setup-patches
  f" U+ Z( X# h$ @  create-turtles 100
/ F8 C+ b, ]6 g+ W" K$ }, i  do-plots
& Y& y" q# Q! P( _+ ]; P  ask turtles [ setxy random-xcor random-ycor ]
end
+ ^4 N/ _. y' q  n7 r* vto go
  move-turtles
& ]; i8 S/ ?' Q1 u4 k  eat-grass
7 Z8 |/ Y$ I7 x' @4 Z  reproduce
  check-death
% G( j4 \: m/ A2 _  regrow-grass
  do-plots
6 e* g% l7 w1 _; Xend
to move-turtles
; S9 I8 j/ t/ z$ Q% p9 y  ask turtles [
    right random 360
/ J3 n+ e6 d- O    forward 1
5 m7 Y/ }4 n. f% ~! \; Q- Y& [    set energy energy - 1
4 K' E; ^) |, Q    ]
end
to setup-patches
  ask patches [ set pcolor green ]
; T0 G( W/ }2 u; I, ?end
- k: f1 M" z# M  @to setup-turtles
" ?! v3 Q7 A, L  create-turtles 100
) e! A) `' a2 s, `  h2 U  ask turtles [ setxy random-xcor random-ycor ]
end
to eat-grass
  ask turtles [
    if pcolor = green [
5 K$ @' c; W2 M7 U6 \+ V9 w      set pcolor black
      set energy (energy + 10)
' x+ _' v& _3 |! h      ]
2 L$ t9 r5 ]8 O+ W2 e1 C0 |    ifelse show-energy?
      [ set label energy ]
0 M! y* M4 J7 ~      [ set label "" ]
0 `0 C4 b7 R( d( n0 z    ]
end
to reproduce
1 c# R, f2 O, z" N3 Q  ask turtles [
    if energy > 50 [
      set energy energy - 50
      hatch 1 [ set energy 50 ]
      ]
    ]
end
to check-death
2 \5 T+ e, g/ c  ask turtles [
, {, M4 q" j8 J. H- L    if energy <= 0 [ die ]
    ]
end
+ D0 \- p! ^$ Hto regrow-grass
  ask patches [
    if random 100 < 3 [ set pcolor green ]
/ M% I+ K/ V/ v: P& v    ]
end
- f4 g% `- o3 V9 y+ }* @) o4 Wto do-plots
  set-current-plot "Totals"
  set-current-plot-pen "turtles"
  plot count turtles
  set-current-plot-pen "grass"
$ g6 L" k+ O' H& }" D& F  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
' o' k% a, q: ]" v" W( N  called by procedure DO-PLOTS
  called by procedure SETUP
- R: c" p) f: ?/ X$ m  called by 按钮 'setup'
( }+ e+ i/ u: E: I+ `- \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
: j1 t7 W1 i& p2 j9 j2 @& ^/ Q" H& U& u建一个叫做叫做Totals的绘图框就行了

0 c! }. V) B( e& A; _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。