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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
5 ~, {; H; j/ g3 K+ c" x其中有一段如下
0 R0 G, j" b$ m8 w/ b; rask turtles with [ infected? = true ]
" [9 K2 R/ Q% E% k/ K8 E! l我原本以为这句会回传『所有』infected? = true 的 turtle
# H7 d# r" d( G6 b; @+ Y: g. A! j但看结果似乎不是这样。9 f& }; t. F0 O% w( w
6 u6 T0 f4 B5 L. S; N4 C假设所有符合条件的有 5 笔
6 X4 o' a' b' ]* y! |" ^有时候回传 1 笔,有时回传 3 笔,是不固定的$ D. l4 f# U. ?) M% T& `
回头查语法定义1 x. H( |- g, p- {7 G* N) e
with
. J: V& R6 A3 L kagentset with [reporter]% ^" M: T. Q1 n1 t1 M
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.* N( c* h! R: ^) h
它只说回传 agents satisfying the given condition$ E/ T/ K, M" i$ n+ f r6 b
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 ?
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% b+ f1 Q6 J. V, x1 {9 _, _' j想确定一下
9 ?' D3 |0 e# t. G# \ P: E+ n' p谢谢!- N) D& @5 o! H: u/ o2 G4 P2 n
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