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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! Y( r: r8 @+ J, Q
其中有一段如下
W' `2 Q, x+ p: k5 ~7 P, Gask turtles with [ infected? = true ]
! r7 M0 v: j" Z8 s我原本以为这句会回传『所有』infected? = true 的 turtle
7 U2 E# d3 a8 M G- K1 N7 F但看结果似乎不是这样。, M) z9 F, z# h3 w1 J
5 ]* ^2 ^9 s* A. x假设所有符合条件的有 5 笔% @. ?; R. E ^. ]7 w; L2 {
有时候回传 1 笔,有时回传 3 笔,是不固定的
; T9 G" p; H, b% y! Y回头查语法定义3 p* O" s7 ^" c' H9 y q
with
$ g( i( h% G. F8 J c( W3 k% u7 Pagentset with [reporter]5 e1 y, G% y5 m' z2 e" y. d5 j
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.
+ x% a) r" M) A2 }它只说回传 agents satisfying the given condition3 C# m* v$ d7 e
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 ?
0 ]0 H& }6 D% Q$ }/ H
9 i! n9 K* S4 p( F" d0 X: C, f T想确定一下
: s' z( }5 T: U+ ~谢谢!6 _7 q R. y0 X% S
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