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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
! Q" c% s0 g. D0 y* m C2 s其中有一段如下6 n+ }2 h7 C' v! G. r) n
ask turtles with [ infected? = true ] * P) M0 m5 H% [+ I6 E2 J( S
我原本以为这句会回传『所有』infected? = true 的 turtle
, F' _" ~3 Z/ H& G5 O但看结果似乎不是这样。0 d4 t: f; ~* p4 h: ~
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假设所有符合条件的有 5 笔
. |/ X0 B. z$ _, m" f& r7 l. ^有时候回传 1 笔,有时回传 3 笔,是不固定的
' l1 y( ]0 j1 f0 U+ f1 z回头查语法定义
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agentset with [reporter]4 u7 m) k! f$ H
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.
2 u3 J1 s4 \, d' t它只说回传 agents satisfying the given condition3 G" R. A1 [+ L# ~1 Y8 n
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 ? ( V8 \9 f& H% g# I; L) T& x9 s
$ L* t! ^6 ?3 C: M( g1 X想确定一下
( `0 \$ {- s4 o k谢谢!
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