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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1 S1 e1 I' K7 Z! T7 [
其中有一段如下
7 y7 `' S. ?3 h- C2 d/ U% \* Cask turtles with [ infected? = true ] * G# ?+ T: w% F7 G
我原本以为这句会回传『所有』infected? = true 的 turtle
( {( D) s5 k5 s- D7 v# S, W但看结果似乎不是这样。
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假设所有符合条件的有 5 笔: B/ U$ P! ^& v7 j" S4 g
有时候回传 1 笔,有时回传 3 笔,是不固定的
3 W: \) X) `6 L回头查语法定义
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agentset with [reporter]
4 K3 O6 X8 H- C( h' s, J! X. G- [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.7 K9 _: U2 g/ Z2 |
它只说回传 agents satisfying the given condition+ A& B8 J. G+ p
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 ? ' o' ?+ p0 o# s+ R. ^
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想确定一下* L2 I _( w8 L i6 N
谢谢!
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