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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! T& z" y* V& q
其中有一段如下
. P2 ?2 Z% S* X, E" D" Aask turtles with [ infected? = true ] * E; r4 V9 J6 W6 J4 {6 L6 m0 \
我原本以为这句会回传『所有』infected? = true 的 turtle
7 O7 c( _0 S" B! w& z& s- _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
: E' d+ c/ V7 B5 X& [1 n有时候回传 1 笔,有时回传 3 笔,是不固定的* m& Z# f* g7 t0 V# ]
回头查语法定义6 l1 U: u0 Q, q$ {. S0 Q6 P- ?
with
7 u. _7 j; u( ?& R1 {5 lagentset with [reporter]
7 W' |. b6 {/ h( G) @- d; S% 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.
7 t3 q0 M+ O1 V$ ]" d它只说回传 agents satisfying the given condition- H* R' p# r# l( z
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
- K5 Q/ h2 a2 _9 r: H谢谢!
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