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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
: ^' M; A+ x) }0 c其中有一段如下0 o6 c6 l( K; R* E4 `# \3 j
ask turtles with [ infected? = true ] ( m' [: k; e# f, C: H; X9 U# k
我原本以为这句会回传『所有』infected? = true 的 turtle
7 h7 }: F' w& C但看结果似乎不是这样。
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" }+ _8 ^$ C3 c, E/ a- S假设所有符合条件的有 5 笔! r1 X. Z; H0 J2 ?
有时候回传 1 笔,有时回传 3 笔,是不固定的
# W- U5 g2 ~$ ~2 A+ U+ e回头查语法定义
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agentset with [reporter] L+ D7 C0 N1 ~
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.
7 Z/ m7 y0 d A) F {) @6 Q a) M它只说回传 agents satisfying the given condition
7 m7 |, D& W, f; x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 ? + R2 g1 @- s0 t
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想确定一下
) Y4 h! i* k. T$ l谢谢!
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