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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+ e3 n' h3 |8 ~
其中有一段如下3 A) U- J1 \& k: W- j
ask turtles with [ infected? = true ] $ d; s! @: u. L2 l: X* z
我原本以为这句会回传『所有』infected? = true 的 turtle& {1 D# U- L( c, H
但看结果似乎不是这样。 S, [5 z! u0 F$ b
6 B& C# x4 L' \- ?. v& d; G假设所有符合条件的有 5 笔
, ]" J6 |. f! u e有时候回传 1 笔,有时回传 3 笔,是不固定的
) Q/ C8 f9 i5 A5 e3 L回头查语法定义
/ q0 p; A0 @7 V& {- {2 F6 Owith ( E6 S; x, R0 @# @9 i
agentset with [reporter]6 u( M9 [3 t# `8 }& s ]
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.
, V( v8 Y1 F9 w! h! |+ L5 r它只说回传 agents satisfying the given condition
; J: ~9 X3 C; T2 N; R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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5 y8 o. i' B( T& c) C- P+ o想确定一下. }) ^1 J2 r C& { |
谢谢!5 c5 |2 t' q) t! e; y/ l# _
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