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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9 `0 g8 M- N3 k, y) U
其中有一段如下# V0 b$ M, }. M3 |- w
ask turtles with [ infected? = true ]
1 O! A6 ~ D: H# q+ }( ]7 U我原本以为这句会回传『所有』infected? = true 的 turtle
x5 V. Z. W; j7 U4 l; w6 b但看结果似乎不是这样。; y9 v# k/ k( {, O P' p
4 [ T9 k2 S$ @2 [假设所有符合条件的有 5 笔5 m, A) L/ m$ ~7 W! W
有时候回传 1 笔,有时回传 3 笔,是不固定的" Z& W4 M$ S" J0 a8 e- [) s2 S) c
回头查语法定义
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agentset with [reporter]6 L* ^! |3 u! }9 E1 N
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.
( ]; u' b5 }4 F0 i9 U* p" z( s它只说回传 agents satisfying the given condition4 f3 `. ?6 |$ t( h( i
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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2 I3 _5 p3 S/ q; l想确定一下9 y; l# `3 {! ] w' R* A) Y
谢谢!# i9 T; T" j) b9 i! D
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