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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
' G* U9 Z% _6 N6 ?( P其中有一段如下8 s8 b1 i4 [+ |9 V% e9 ]
ask turtles with [ infected? = true ]
, B+ h5 ~, K' ]" b6 ?; Q6 o我原本以为这句会回传『所有』infected? = true 的 turtle: O" p P. Z3 u
但看结果似乎不是这样。
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- {9 W: r) F# g" V9 C9 ~, Q% [假设所有符合条件的有 5 笔( n( F* |2 g9 I4 M1 t: ~
有时候回传 1 笔,有时回传 3 笔,是不固定的
/ R: O! N4 q9 f( N2 t7 k回头查语法定义$ w7 n0 {* l3 F# f
with
) P+ s5 x2 q8 g( e4 @ a* }agentset with [reporter]* q- D" S+ @! \8 k6 p6 y
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.; o% z. D; L/ k$ Z% ]
它只说回传 agents satisfying the given condition w: K, y( T. R$ ?, M2 K
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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9 {! k- X x5 K6 M9 J/ j想确定一下
) ~) M2 T5 R+ u谢谢!
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