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
  clear-all
  setup-patches
  create-turtles 100
  do-plots
* g: ?; M1 s$ G8 n  ask turtles [ setxy random-xcor random-ycor ]
end
& ]+ w/ K8 n1 i- fto go
) {* T: d) U+ N% ^7 h- K  move-turtles
  eat-grass
" O0 g0 d1 N$ [7 F  reproduce
  @( c+ Z4 V8 Y" h; w# p/ U9 _  check-death
6 t5 i3 L( m+ N+ m* J' A5 {1 |% m  regrow-grass
  do-plots
end
to move-turtles
' x- M/ O8 n9 P; X  ask turtles [
    right random 360
- v, s: X1 g2 U1 L    forward 1
6 E/ l. ^& x# @; l* V    set energy energy - 1
1 ~, M$ E) N, b: ]/ @) e* z  Z    ]
end
to setup-patches
+ @/ g4 {7 B3 C/ V, f0 B! X  ask patches [ set pcolor green ]
end
to setup-turtles
! R, `% S+ m' T* R  create-turtles 100
' b& ]; y# e' y8 w# c  ask turtles [ setxy random-xcor random-ycor ]
end
to eat-grass
% N. b6 j3 ?% O& g! k  ask turtles [
+ K: @6 ]- [. r" K, k    if pcolor = green [
      set pcolor black
      set energy (energy + 10)
      ]
    ifelse show-energy?
      [ set label energy ]
      [ set label "" ]
    ]
% D3 B9 g* S( g* b4 l9 |end
to reproduce
  ask turtles [
    if energy > 50 [
      set energy energy - 50
      hatch 1 [ set energy 50 ]
      ]
    ]
6 b/ N1 T: Y+ D' H; J0 oend
to check-death
2 G1 W  \0 l% @9 H- l* a  ask turtles [
    if energy <= 0 [ die ]
+ z9 @$ H6 _/ L$ R4 a2 V5 Q    ]
end
to regrow-grass
$ Z% U* t/ t( V! H2 w  ask patches [
# u0 n8 |; r( |7 n. d( T6 h, E9 m    if random 100 < 3 [ set pcolor green ]
+ ?" x  G6 {7 ^7 @1 O  u  {# e; T    ]
7 {9 l" n, X: f  gend
' g1 g4 o) U  C5 R/ A$ q- }to do-plots
  set-current-plot "Totals"
  set-current-plot-pen "turtles"
1 V4 f% V. V7 U  l5 ]  plot count turtles
  set-current-plot-pen "grass"
/ w& @' Q/ W+ I; F/ i! N# p# M  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# {$ D. h! O' Z- m. J) T- ?  called by procedure DO-PLOTS
" o( U) c! A8 Q  `  called by procedure SETUP
6 K# a" B6 P% }% u4 h# e  P- D  called by 按钮 'setup'
3 ]9 f- k: d+ j9 n2 L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

! j2 R3 p' A+ U+ F  z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。