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]
* x- R+ {7 y: d( Z- `$ sto setup
% \* v+ B: F6 I' r% J  clear-all
6 @/ S/ \0 V: Q( E# f/ X  setup-patches
9 `$ r) [; ~, G/ w2 p  create-turtles 100
! A! j0 E( \6 W) _" V7 H, m  do-plots
4 q/ L, _. C  k. V/ G* n  V2 B  ask turtles [ setxy random-xcor random-ycor ]
end
2 Q, W5 o& Z. yto go
  move-turtles
0 J: Q5 u9 X7 s% z; F  eat-grass
  reproduce
  check-death
7 B* c6 g4 m# m! @1 r  regrow-grass
5 g! }: T* x$ {0 C6 [) Y3 x  do-plots
end
to move-turtles
  ask turtles [
  m- J  g7 w7 E    right random 360
    forward 1
    set energy energy - 1
    ]
end
3 `8 U! O, A3 |, z7 X5 ?1 Qto setup-patches
  ask patches [ set pcolor green ]
end
to setup-turtles
  create-turtles 100
  ask turtles [ setxy random-xcor random-ycor ]
5 G) P. K7 A  Xend
. A* p  R" a' x) N0 E' [to eat-grass
+ S1 ~( }9 R* x' g5 M  ask turtles [
( W, i; [& d6 V4 a; `    if pcolor = green [
      set pcolor black
      set energy (energy + 10)
      ]
& _/ d% g( k8 i4 V8 D4 K    ifelse show-energy?
      [ set label energy ]
- w4 L' R$ a7 O% W2 e6 H: ?" T5 y0 z      [ set label "" ]
    ]
; x& N: b1 w6 y! K7 G4 @end
to reproduce
  ask turtles [
2 Y& N2 H  Z0 A, }    if energy > 50 [
      set energy energy - 50
0 L2 c  L! X. J8 d; O      hatch 1 [ set energy 50 ]
+ P2 x1 Y( Y# a2 q6 R) }4 `8 ~      ]
    ]
end
, e* t; [/ q5 J6 Z/ Tto check-death
  ask turtles [
    if energy <= 0 [ die ]
; R4 z" ]# p* x6 W& {    ]
end
to regrow-grass
1 S2 r0 i) p. D- ?* C' V8 A  ask patches [
    if random 100 < 3 [ set pcolor green ]
    ]
end
to do-plots
  set-current-plot "Totals"
  set-current-plot-pen "turtles"
( `' m& Y* O8 d1 z, n) h6 Q5 h  plot count turtles
% r& z( o' ~0 ?' q: {' b4 c; i* m  set-current-plot-pen "grass"
" G  }: g4 M+ Y! e  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
4 d2 ~3 L- o9 l1 E6 }4 N  called by procedure DO-PLOTS
  called by procedure SETUP
' R5 V! u0 A8 |% X  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
建一个叫做叫做Totals的绘图框就行了

, ~1 }# Y1 q( r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。