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新手发问超简单问题,目前还处于研读范例码的阶段,边测边看结果来理解程序
" Y( s e! M( T1 }6 j+ K其中有一段如下% c5 i# c1 H& O: c" U
ask turtles with [ infected? = true ]
2 m4 V3 P4 q: Q& n1 v4 s我原本以为这句会回传『所有』infected? = true 的 turtle/ Q3 H# H1 s7 [6 T0 i
但看结果似乎不是这样。- M3 {$ l/ F2 n6 B' ^9 P
+ G' Y$ x" G9 o0 {) X: t1 v假设所有符合条件的有 5 笔4 R8 d9 h1 E9 l( G
有时候回传 1 笔,有时回传 3 笔,是不固定的
: Q8 I$ k A5 q回头查语法定义) l2 a) {. ]" f
with 1 f6 L/ g* a0 U2 f
agentset with [reporter]5 M6 J6 d @. I6 T
Takes two inputs: on the left, an agentset (usually "turtles" or "patches"). On the right, a boolean reporter. Reports a new agentset containing only those agents that reported true -- in other words, the agents satisfying the given condition.
# x$ D" Y9 k q它只说回传 agents satisfying the given condition
: \. N! k9 j5 i0 N$ O1 i; t! x是否 with 回传的是『符合条件』的数据,而不是『所有符合条件』的数据 ? ! J& F" r9 D" c6 F/ e
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想确定一下. C4 S4 ?- J# y4 {
谢谢!
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