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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
4 L5 j2 J0 y+ n, G: q1 K; a+ h: z其中有一段如下
E& }; C. T: {' lask turtles with [ infected? = true ] ' e! c5 \7 _1 o w! m
我原本以为这句会回传『所有』infected? = true 的 turtle
9 w3 X9 A* P4 Q% t但看结果似乎不是这样。+ q4 e% f: f5 e6 W1 N- F
3 t" f' l# W- |& h6 Q假设所有符合条件的有 5 笔
! Y/ g6 W+ t2 d S4 J; o$ D有时候回传 1 笔,有时回传 3 笔,是不固定的
+ B% K; ~7 R5 f3 b- |) F: |# `回头查语法定义5 S+ o* Y9 S& h4 u8 ~
with - a5 g4 S7 R; V3 O1 g& ?* X$ w
agentset with [reporter]9 K, J) ^" d% B- Y, d
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.
- @) _* B' I1 d3 A0 l它只说回传 agents satisfying the given condition
8 Q: ^% x' x" {/ C! j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 ? " Y! b1 \5 D. W; h/ t
8 t3 i/ h, L. a/ h
想确定一下
1 I5 l) `2 Q8 a8 w9 o谢谢!% t" S1 x5 O( A! C
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