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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
6 D! q3 x8 ]. G. [: E9 X5 L其中有一段如下
. @; `1 D6 I* |- @! i1 V A$ Nask turtles with [ infected? = true ] % g" Q, o R, F
我原本以为这句会回传『所有』infected? = true 的 turtle
Y T0 V4 o& h$ s( k但看结果似乎不是这样。7 L+ H2 H6 u! ~9 ^
, @- E0 n- g( @6 X假设所有符合条件的有 5 笔0 @" r5 r$ E6 m8 x+ S
有时候回传 1 笔,有时回传 3 笔,是不固定的
. I& D; i% x( e' S0 _回头查语法定义' f( @) d2 W* H/ T4 e0 l8 n
with 9 C- j# G7 X' c3 y7 N9 G9 K' j; V
agentset with [reporter]3 S- M; r/ w6 d' \$ A
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./ ~& m O1 @* i% D
它只说回传 agents satisfying the given condition
& \6 [. a) a/ T3 D8 ]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 ?
2 \% ~2 a& g2 b9 G' d0 v; {& H B' [# z- |- k
想确定一下
$ r8 Q: p: c# f2 |4 k谢谢!
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