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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) a2 S$ t$ c# K: U) P
其中有一段如下' w% n. R R$ {5 T2 o; M7 o
ask turtles with [ infected? = true ]
+ V& p6 K, }- u; T0 ~# z+ J我原本以为这句会回传『所有』infected? = true 的 turtle0 y x; k. f" y, [3 M& g. q
但看结果似乎不是这样。# W1 }8 C3 ~' l6 h& @( o
- E7 o2 f/ n9 z# b假设所有符合条件的有 5 笔
8 a/ F# U! \8 c. a有时候回传 1 笔,有时回传 3 笔,是不固定的7 z" i9 \ `* v& P
回头查语法定义
) m7 F& S" X5 cwith 9 d, z' r# C% g5 Q2 j6 C# J, g
agentset with [reporter]
3 p! J3 f; j( N! g4 g7 ZTakes 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.
, j8 R- a: p0 G, g2 p! ?; Z& z, Y它只说回传 agents satisfying the given condition
3 r# ?% `; Y; o3 n. S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 ? - e0 f) a) K, G) p* W
; C* u; {( n1 C9 y5 o8 C想确定一下; F* `3 S7 j O, P
谢谢!: z+ I: q' Z8 V
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