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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5 k0 w" Q" y$ |3 \; V2 d) N
其中有一段如下4 Z3 G/ M% U7 C/ H$ [
ask turtles with [ infected? = true ]
( R7 ]- f' H/ f3 r; t; y我原本以为这句会回传『所有』infected? = true 的 turtle
- a/ ]' T: P' `2 ^. W1 e: n( a但看结果似乎不是这样。4 H, e9 s3 e6 e' k# f, q
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假设所有符合条件的有 5 笔$ e7 {2 g1 p- ]* v) r6 ~7 u: U
有时候回传 1 笔,有时回传 3 笔,是不固定的3 u2 @5 ?9 U; J
回头查语法定义* X" u+ m/ g M: S
with
# g# q8 y1 b3 o& Yagentset with [reporter]% c4 d; x- q6 ~+ S* Q2 K- r
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.
# z2 y- ~7 r- T% H7 t- A- q它只说回传 agents satisfying the given condition
|, L5 ]6 L2 H$ n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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想确定一下
- r- }& C: x# R谢谢!
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