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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 U& [8 ^/ y2 l5 v8 a, g9 a2 _
其中有一段如下5 O; w( v& a2 X# m n; p5 |) \/ l
ask turtles with [ infected? = true ]
6 `9 s9 w2 v$ y9 p! x [我原本以为这句会回传『所有』infected? = true 的 turtle
/ d' I4 k g- L5 z% D但看结果似乎不是这样。' M* a, |* P z$ M2 b3 U1 {1 k
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假设所有符合条件的有 5 笔0 K2 K/ P# \0 R4 i4 z3 G
有时候回传 1 笔,有时回传 3 笔,是不固定的
/ S$ H6 i3 q8 h3 _; E! c0 O5 b7 o回头查语法定义6 l5 E' Q/ s$ D2 {+ i4 d1 G8 W
with
2 O" q2 P# \' S5 b6 u/ o4 q: dagentset with [reporter] \# U w, e) H0 _* x) {
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.1 s" ]! b* k; P9 C4 V( O2 Z, C
它只说回传 agents satisfying the given condition' B3 {* m' 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 ? ' t% Z1 N" M& H' d
6 z. C9 f9 F y: `) ?* v! m想确定一下
' k Q; g% M/ ^% f5 M) L) V: d谢谢!
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