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
% u" S# S" V1 s  clear-all
  setup-patches
. Q( g( e. e$ F0 {: c0 H9 S  create-turtles 100
  do-plots
% g3 D/ a9 T" C7 s/ l  ask turtles [ setxy random-xcor random-ycor ]
5 k' s4 j0 d! x5 q& u) rend
) r) k! ^, s% M/ Yto go
  move-turtles
/ z. f# L9 a" _$ _" @. Z  eat-grass
! t9 t1 A; B9 C. i' Z/ r# i  reproduce
  check-death
! N. U1 l$ w8 [  regrow-grass
  do-plots
end
1 \4 l) `+ q1 h6 S8 S, gto move-turtles
0 ~) y+ K: C' Z# D' u  ask turtles [
2 P6 I. w9 S- d8 H& h6 K    right random 360
    forward 1
/ v4 `7 O9 E' A    set energy energy - 1
    ]
$ `; C& t' r: J" }end
to setup-patches
# |2 @* P, T2 H* O$ S  ask patches [ set pcolor green ]
end
" V' R7 b$ m) s. P8 Q& k( i/ xto setup-turtles
) I: l5 F; t+ e3 Q0 y* }  create-turtles 100
; r3 V" W+ }! X- R  ask turtles [ setxy random-xcor random-ycor ]
end
to eat-grass
% s) ^, x( _* P2 u: b" K% B  ask turtles [
9 w/ \$ P5 G$ P9 J1 `0 {8 ~    if pcolor = green [
      set pcolor black
      set energy (energy + 10)
0 K. ]+ \1 {' ~- n. o      ]
; N( V$ Z2 T+ a1 [: k' C; U$ r! B    ifelse show-energy?
      [ set label energy ]
6 n6 n3 f4 X/ |( |6 ~      [ set label "" ]
    ]
# G) `  o. G8 ?% |3 V& j& D# Rend
( R( ^5 ^; Y' Wto reproduce
3 D: V8 ?: h( _. u! X+ `! T  ask turtles [
) b  E( G0 n, W/ R) H& V    if energy > 50 [
      set energy energy - 50
      hatch 1 [ set energy 50 ]
      ]
    ]
! q0 k/ g( R4 N$ v: Z; `' H+ vend
to check-death
5 E5 Q6 O# U& Z  ask turtles [
    if energy <= 0 [ die ]
    ]
end
to regrow-grass
  ask patches [
    if random 100 < 3 [ set pcolor green ]
    ]
# O' z" j3 Y. r% o) lend
to do-plots
0 X' `& j; Y0 |1 t  set-current-plot "Totals"
0 P1 s0 J5 t# o+ H* S  set-current-plot-pen "turtles"
$ r# |6 y3 \9 m  plot count turtles
  set-current-plot-pen "grass"
4 ?) t; `) [: m& g* g  plot count patches with [pcolor = green]
end
% u0 {8 W! `2 |3 @& K  ~: o可是运行时提示no such plot: "Totals"
# d' b+ i* d4 g' X9 M! kerror while observer running SET-CURRENT-PLOT
  called by procedure DO-PLOTS
7 P/ D/ e! I& W0 H  called by procedure SETUP
$ P8 m! D/ a9 o  called by 按钮 'setup'
2 ?# V$ ?  m0 @% K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
" y: @5 {0 _) p' }3 b( R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。