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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
; l$ V0 `+ [/ G; G. O6 L$ d其中有一段如下1 S: k; y) a9 s3 z" V
ask turtles with [ infected? = true ]
/ n1 q7 M- [1 d0 N) H g我原本以为这句会回传『所有』infected? = true 的 turtle8 e& J' O3 H y) _$ e
但看结果似乎不是这样。
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8 n( Q- r) Y: }5 [' J假设所有符合条件的有 5 笔
* o# z* b" o( [. P& y8 ?有时候回传 1 笔,有时回传 3 笔,是不固定的
* r' a$ q& w+ e0 V6 T; a; ]回头查语法定义" Z5 S" N+ e5 X5 d; r
with + q' R. P. ~3 T' o
agentset with [reporter]7 j) |- Y: D c( m
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 V) S3 Z% n% U
它只说回传 agents satisfying the given condition; \$ G" Q' V7 m% e
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 ? 5 Y2 E" S: d9 U$ R& e, M" ?
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想确定一下
; L- x' P1 ^. z谢谢!
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