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
8 [8 I) z8 m- m5 h# u0 i  clear-all
8 ~2 ~9 I4 u: z  o0 C  setup-patches
  create-turtles 100
  do-plots
  ask turtles [ setxy random-xcor random-ycor ]
end
* `, v9 G& t( A2 w# ^to go
3 O9 r& ^3 O  A6 N, D/ F( C  move-turtles
  eat-grass
  reproduce
( }4 V- ?1 b( v1 m8 M  check-death
  regrow-grass
  do-plots
- o# `3 i' a% x$ h$ g) i/ Yend
% Y" p$ b9 ?9 n- A) t7 {to move-turtles
3 Y+ Q, J' i$ ^; v6 h  ask turtles [
    right random 360
    forward 1
    set energy energy - 1
    ]
end
to setup-patches
2 B6 x! r) l, y" ?6 p0 \; J8 N4 V  ask patches [ set pcolor green ]
end
to setup-turtles
  create-turtles 100
  ask turtles [ setxy random-xcor random-ycor ]
end
to eat-grass
  I2 p3 Y5 b  K& B  ask turtles [
3 i9 k& S4 N& T# x    if pcolor = green [
      set pcolor black
      set energy (energy + 10)
      ]
* J3 e/ C3 e" w- V$ l0 X6 B7 R) M8 ~+ K    ifelse show-energy?
* p! Z5 }1 z1 S! w1 W      [ set label energy ]
0 r1 l9 Q& W. T' d, y* J. P      [ set label "" ]
    ]
end
to reproduce
  ask turtles [
    if energy > 50 [
      set energy energy - 50
6 F- p6 {1 v: K      hatch 1 [ set energy 50 ]
      ]
    ]
: p, j* ]* R9 L- d$ j1 c6 F, Mend
to check-death
2 j' V5 `. J) y- I  {: v* Y  ask turtles [
$ C/ J( A5 U: |& O$ T, H) C    if energy <= 0 [ die ]
    ]
end
to regrow-grass
) W( R+ T/ p& P( ?5 ~4 V  ask patches [
$ f% s8 ^8 V: M    if random 100 < 3 [ set pcolor green ]
    ]
end
% y6 F% I' P' l! _9 yto do-plots
  set-current-plot "Totals"
  set-current-plot-pen "turtles"
  plot count turtles
- R# k9 L+ I/ c4 U9 Y, c1 a  set-current-plot-pen "grass"
  plot count patches with [pcolor = green]
end
4 f+ V( N  O' R# t' o% A6 |* g; A. K可是运行时提示no such plot: "Totals"
& Y( k3 o0 Y  C/ verror while observer running SET-CURRENT-PLOT
" L5 R4 b% ?8 i# b$ z9 j  called by procedure DO-PLOTS
  called by procedure SETUP
( F% G% A5 w2 A  j  called by 按钮 'setup'
3 l5 D3 X6 |6 P. j5 `# @# ]% G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
8 ~' F- X% Y1 ]- l0 O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。