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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3 g" F0 u" u. Y" B
其中有一段如下, l+ z2 n' k0 @. A$ B
ask turtles with [ infected? = true ] $ F% t/ {0 q0 Q8 j6 Z, a+ V
我原本以为这句会回传『所有』infected? = true 的 turtle
5 x5 y/ i- X, I u但看结果似乎不是这样。+ g4 M3 t" e: F* ^
+ | M; i2 R- d4 J6 s9 e假设所有符合条件的有 5 笔" V. a4 g8 z( { X
有时候回传 1 笔,有时回传 3 笔,是不固定的
4 G. F5 [+ p0 y) _, S回头查语法定义
. A% _ f0 G _5 Z- b( ?" |with . X0 M0 \( H6 Q. v& ], [
agentset with [reporter]2 S" j2 Y; G; @. P
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.
7 H( I- Y3 ^" |它只说回传 agents satisfying the given condition" j: M. H" ~- W7 N, e- a
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 ? 5 ^0 d4 p8 n8 \
+ p' {6 g5 y6 b& N想确定一下
/ V) E2 C$ z' X# N0 y% [6 O谢谢!1 N+ C/ R0 r7 D4 x/ s
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