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]
( A: g) |5 ], {, [+ B, fto setup
3 g+ S, W; `4 N' S& D  clear-all
5 o4 x6 Z! m' @* M0 X1 e( A  setup-patches
0 H# _. d; a: p# Z  create-turtles 100
5 u1 ]% `' A7 ~( t5 V6 N' Q. X6 z  do-plots
  ask turtles [ setxy random-xcor random-ycor ]
end
* l6 u/ |2 L- ~0 X1 A* Vto go
  move-turtles
+ A0 n7 ^) X- ~1 Q6 J) D  eat-grass
  reproduce
  check-death
  regrow-grass
  do-plots
end
to move-turtles
  ask turtles [
    right random 360
/ L6 e: R+ ?/ W! k% r    forward 1
    set energy energy - 1
    ]
end
! d9 b" R2 i- I. Eto setup-patches
  ask patches [ set pcolor green ]
end
0 c$ Z7 Q& S3 t2 _- x/ ^, vto setup-turtles
4 O, T9 @8 t0 e5 c  r+ a. `: i  create-turtles 100
6 u" W6 W$ g+ o5 ~, s+ z/ _1 I  ask turtles [ setxy random-xcor random-ycor ]
end
8 v5 }- }; l0 O3 M" b% Oto eat-grass
  ask turtles [
    if pcolor = green [
      set pcolor black
0 a4 E% b7 y7 V5 w6 R* r) j5 T      set energy (energy + 10)
( h7 y" Y( T( ^0 [      ]
' o9 L. H- E2 i' o. M7 a) l    ifelse show-energy?
      [ set label energy ]
      [ set label "" ]
    ]
end
) j0 M) q, z) I( D6 e2 Gto reproduce
% x2 D+ l3 p& T4 J  ask turtles [
' Z2 o$ w! @9 ]    if energy > 50 [
      set energy energy - 50
      hatch 1 [ set energy 50 ]
      ]
; b- D& y9 e# i2 N2 n& t    ]
- d( I4 \8 n- y0 nend
; x" r, D: x" N; M) Vto check-death
  ask turtles [
    if energy <= 0 [ die ]
    ]
end
to regrow-grass
  ask patches [
    if random 100 < 3 [ set pcolor green ]
    ]
, x6 _. d" s2 M  ?& Iend
to do-plots
  set-current-plot "Totals"
  set-current-plot-pen "turtles"
  plot count turtles
1 s2 e% R$ U6 V7 {/ H  set-current-plot-pen "grass"
  plot count patches with [pcolor = green]
end
可是运行时提示no such plot: "Totals"
3 ^! B. m  R/ Rerror while observer running SET-CURRENT-PLOT
# t% B. H. n6 |+ e  p  called by procedure DO-PLOTS
# X  d6 B+ R" V' R3 \& ]) D! t  called by procedure SETUP
  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

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。