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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
* j5 }- Z& v- m- K8 A4 T: Q其中有一段如下
& F. d5 N4 f/ task turtles with [ infected? = true ]
* Y' h, L# B$ g! Z" C$ F我原本以为这句会回传『所有』infected? = true 的 turtle% Y8 }* t& T- s5 \, F
但看结果似乎不是这样。 I9 M" w; n2 Y; D) V
$ I0 ]! P: \9 h4 E* H! U9 ^
假设所有符合条件的有 5 笔
& X @# K7 b3 ]有时候回传 1 笔,有时回传 3 笔,是不固定的5 r" j+ f0 g1 U! w6 s, b4 o. X4 @
回头查语法定义
& F# Y# {" e( I! n7 t8 Z2 c& x* [with
w5 c. ^5 g8 `% ~ Cagentset with [reporter]( |3 y/ f! T7 N; `1 q2 R2 C
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.
( B$ A' |; Y! F# L1 l3 l它只说回传 agents satisfying the given condition
2 ]% O; R4 C$ [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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想确定一下
( d2 F* T' b# [8 c谢谢!: B3 U' u4 z1 u8 J! @ V+ L% r }6 [8 L
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