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
- Z( s3 z/ B) W( p6 K  clear-all
  setup-patches
  create-turtles 100
  do-plots
  ask turtles [ setxy random-xcor random-ycor ]
end
to go
; l* a+ a/ a/ |+ Y" H  move-turtles
  z9 m$ N! I1 o& ~: W5 v& V  eat-grass
) w7 v. r, z% X, B* s  reproduce
  check-death
  regrow-grass
  do-plots
end
1 F+ R/ ]9 p& ?) G. f. z+ Tto move-turtles
  ask turtles [
  y) }" e6 y' E0 j  q    right random 360
    forward 1
1 g: V8 ?2 r6 J# M6 V+ D6 k    set energy energy - 1
) G3 w+ w2 g8 N: T: J! H4 ]    ]
- s/ q/ Q2 W) Bend
: F5 x4 P9 Y8 N/ D7 @to setup-patches
" _2 P9 n: }! }$ s/ e  ask patches [ set pcolor green ]
end
to setup-turtles
  create-turtles 100
: D" |- y) h) g$ \7 F  ask turtles [ setxy random-xcor random-ycor ]
end
to eat-grass
( P  L" l1 _* h4 ~3 m; @5 n5 b  ask turtles [
    if pcolor = green [
& P; L/ O# F* K! n7 [* I      set pcolor black
      set energy (energy + 10)
/ j; K) Y0 i3 p& X/ n5 @9 M      ]
    ifelse show-energy?
      [ set label energy ]
7 |8 D6 K$ l! b( j: Y; j      [ set label "" ]
: V8 x$ s) K  }% O& P    ]
# l# `) U- q  J+ a; F0 T' fend
to reproduce
" V3 n' N' |/ q1 j# P! P. [  ask turtles [
$ f$ e) m# O4 p0 g% w( O/ r8 S" K    if energy > 50 [
      set energy energy - 50
      hatch 1 [ set energy 50 ]
      ]
    ]
end
) x3 i- c) q7 ?4 H% o! sto check-death
  ask turtles [
3 n: Z1 D7 [( D* D    if energy <= 0 [ die ]
    ]
end
to regrow-grass
  ask patches [
, j% |6 @5 p+ z% Z/ L) ]    if random 100 < 3 [ set pcolor green ]
    ]
end
to do-plots
  set-current-plot "Totals"
  set-current-plot-pen "turtles"
  t( B6 b) i& x- O+ _! k& n% W, e  plot count turtles
' m* Z6 P; q; c. L+ q  set-current-plot-pen "grass"
% u9 T! Z* P. |9 y  plot count patches with [pcolor = green]
6 @% e# m- S4 gend
; k. p' p1 k7 U5 ?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
  called by 按钮 'setup'
3 ~8 @) Q( |1 Y5 S7 G8 B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

) e$ H/ T3 ?9 o8 K) M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。