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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1 H5 s. X5 U: `7 a9 O( [
其中有一段如下7 |! o3 h7 s! J' K
ask turtles with [ infected? = true ]
7 e! l( b s8 W我原本以为这句会回传『所有』infected? = true 的 turtle
$ H) h. S2 z) E V+ T- m9 \9 Q, u" O但看结果似乎不是这样。" f4 x2 Z2 f$ w% X0 \9 V; g2 x( ~
; x) _9 q# s" T8 Q. D* ]& K假设所有符合条件的有 5 笔, n1 w3 r2 r: ]
有时候回传 1 笔,有时回传 3 笔,是不固定的
t& C$ z3 q+ A回头查语法定义# M3 d) d4 K; ^/ F4 g q
with
& @! m8 k) s) A# x; lagentset with [reporter]! G: R; r8 o' T' e/ K- N# Z8 W
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' U, J- H+ i: @9 f5 V: n4 r+ W
它只说回传 agents satisfying the given condition
! Y. l8 n$ o- B" B" b2 c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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想确定一下
$ D0 H5 h' `) B0 M谢谢!, d8 T E) `6 }1 s- x! N, @: d
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