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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
) V9 \) |6 m v其中有一段如下
+ K* y+ o+ e( c) K3 {7 wask turtles with [ infected? = true ]
8 _9 k5 S) N! H$ G4 h我原本以为这句会回传『所有』infected? = true 的 turtle6 N- Q' q/ B8 ^- v, n; u
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
: l5 d. {3 V$ D6 \ ^/ ]有时候回传 1 笔,有时回传 3 笔,是不固定的
2 S3 s, t) U# n. n6 C回头查语法定义9 q* o u& M/ I# U% @8 C
with
1 ?( L& t& Q7 _7 W/ B+ r% hagentset with [reporter]3 N1 L8 a( `7 g4 F; t0 n9 I0 N4 t; Q
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.
. q8 O9 I+ l+ C2 H C& m它只说回传 agents satisfying the given condition) G$ U) I* _1 g' T& \
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 ? ( [* A" E' D) L, H# R; B6 M; S: a
7 d$ g- ], F9 N9 \+ K
想确定一下
7 v% {) ?0 D Y* f谢谢!) ~( g# X3 u8 r9 k6 |7 e
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