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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# e% w$ \4 l! T( J
其中有一段如下
6 n) Q' J' C5 \ ]ask turtles with [ infected? = true ]
$ z+ Q2 l4 ?' q2 P0 Q8 Q( \我原本以为这句会回传『所有』infected? = true 的 turtle2 d9 Y, w+ g0 H4 c
但看结果似乎不是这样。1 B# {/ D, B7 S. s
0 \+ r0 P6 ]+ T9 ?3 E) R假设所有符合条件的有 5 笔
) b) L$ }6 `3 H' H8 {; j% D有时候回传 1 笔,有时回传 3 笔,是不固定的
4 X( I6 v& B6 V( u" k8 m( X回头查语法定义- M- N/ r* k, X# L% t9 u/ l. @
with ; Z5 q7 R2 x+ w) U
agentset with [reporter]
6 Q+ t) J/ b; Q0 V0 D5 m/ Z/ H; PTakes 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.
9 g. P: d- O" d, D3 j它只说回传 agents satisfying the given condition/ W$ r2 w) c2 u" A$ \
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 ?
+ X# d% `4 E8 B( C, R! J# ]
9 b) e U$ t0 ]; Z8 j( D3 N想确定一下4 B& V0 ~9 f$ G: M
谢谢!! l' g2 k- B# j, X+ v
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