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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0 `4 R0 b3 l, P, {
其中有一段如下# }/ g( `' s; C0 Y2 I/ i! k/ j
ask turtles with [ infected? = true ]
; D4 G" c6 m# y9 v7 T* Y! _- v我原本以为这句会回传『所有』infected? = true 的 turtle N+ Y8 E' [$ x7 t+ y
但看结果似乎不是这样。! L* V8 F# D1 @0 O Y$ V& R' V
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假设所有符合条件的有 5 笔( @5 C9 G8 A$ W
有时候回传 1 笔,有时回传 3 笔,是不固定的
3 P- m* B# `6 U# M" ]1 \# ~) y3 N- Q& [回头查语法定义
/ {) o% |4 Q( E* m1 N) ]with
/ D. K( h2 o% T4 `/ @+ ` Zagentset with [reporter]
% c0 y& t; Q0 ~" g9 NTakes 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.3 N' m- ?) s4 y
它只说回传 agents satisfying the given condition
6 ?( s# y! x2 t4 a8 ]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 ? ; a! ?6 c9 z. N& G" s
# V4 m) {# {! c: C8 J( E; r6 K想确定一下/ d5 p8 i1 i1 e( k* @& `0 W
谢谢!! X* F% [0 u( O" V) l0 M# ^ s! B$ ?
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