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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 y3 t0 W. Z% O# J E2 s
其中有一段如下
& c2 L8 s" D! [1 \7 `4 K8 mask turtles with [ infected? = true ] * d G% R) f1 _* f+ z* n
我原本以为这句会回传『所有』infected? = true 的 turtle
8 v2 W9 _. c: F4 N% A1 ^0 Z7 Y% u但看结果似乎不是这样。
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* @/ r8 |+ }3 K. ^* p. N6 {假设所有符合条件的有 5 笔6 ?( {; G& Q7 E
有时候回传 1 笔,有时回传 3 笔,是不固定的9 Z- C# f4 W2 Y0 y+ W# E" d
回头查语法定义" r- T# U. H' ^$ ]' S6 B5 o
with " ^3 \% U7 |( M5 O ^: A- Q! q
agentset with [reporter]
6 Z0 y. D& f7 o% r; ZTakes 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., n1 J- f' Y5 P! v( h' j( v
它只说回传 agents satisfying the given condition
1 o$ o: _& P0 b' P; y2 M. v$ }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 ? 4 s& S# y4 b% L8 G/ Q# P/ m1 L/ _
; D" z5 q$ F/ `想确定一下
! N- c! M, ~, m% _, ~' q谢谢!- s* O' ?( Q4 S7 y
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