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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+ o6 z$ n1 f# r) a5 K其中有一段如下& b' B3 [2 ?7 R( v" G
ask turtles with [ infected? = true ] 3 G: d5 K6 |+ s
我原本以为这句会回传『所有』infected? = true 的 turtle
! v- g7 x' z5 r: ~! A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) U$ C" n( R/ t2 M, i
有时候回传 1 笔,有时回传 3 笔,是不固定的
# i R/ b/ n4 a! j1 z! a: V z3 O回头查语法定义; x o/ p! l; D" t \5 J
with 3 E0 \1 `% Z7 |8 t
agentset with [reporter]2 x L C2 b# e% h# ~- v
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." i$ r p7 V; `6 s" s0 M# ?
它只说回传 agents satisfying the given condition4 h2 d- |+ ^0 ~1 g+ s) j+ F
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 ? 1 y" j6 U* o, `
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想确定一下
& M& ]0 D* V! p9 B( n3 W谢谢!, |: F% C& F8 w* b$ n1 {
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