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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 s; H1 q Z" K) e" C9 O$ r- I N$ M
其中有一段如下
2 m, H/ l' m( d0 t4 xask turtles with [ infected? = true ]
5 [. P& S6 G/ ^- r8 u& Z我原本以为这句会回传『所有』infected? = true 的 turtle0 [8 f" X0 |6 m, v4 \' N
但看结果似乎不是这样。6 a& v# ^0 D4 [. [* i' B
) Y b Z. u8 _" z0 l8 b& r& E假设所有符合条件的有 5 笔
2 ~7 `7 M4 T- K1 O, `1 q% q有时候回传 1 笔,有时回传 3 笔,是不固定的# H4 @' e# K$ I9 |/ i X S
回头查语法定义 F A4 B0 f/ T! W* [
with % V5 f/ r: V; X& |9 W9 I" i
agentset with [reporter]. m0 Y6 i6 i" i: V4 W
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.
5 v1 ?! {7 P. o# ^4 p它只说回传 agents satisfying the given condition! C9 S" n" Y+ L: L5 @5 O
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 ?
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( H$ q+ g" e* [4 z5 x1 |& R! w想确定一下! }* ~$ a; T* e$ k
谢谢!
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