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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 B; o, U; O6 w
其中有一段如下
- ^+ t0 W4 _) G/ i, vask turtles with [ infected? = true ]
5 I/ V' l" B! t* {) A; f0 E我原本以为这句会回传『所有』infected? = true 的 turtle% l; n3 G" X0 }0 {5 z' o
但看结果似乎不是这样。* T( G0 R6 d1 s& w" ^9 T
$ s! m: E% a- z5 N% t5 Z假设所有符合条件的有 5 笔9 R) X) H" @* }2 M/ d
有时候回传 1 笔,有时回传 3 笔,是不固定的
$ p) r1 {# x0 w# ~" ~- @ \回头查语法定义& i% e9 C7 S1 y* K6 T7 E; Q& c
with . Y# R& P, t% a5 s2 T" X
agentset with [reporter] P0 U) q. N5 L3 n) |6 j- s7 \4 H
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 {" i) n* p% t, I% c: F9 S
它只说回传 agents satisfying the given condition
s# T7 U/ ^* F8 A7 }. o7 B, 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 ?
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想确定一下0 g& ]3 ^9 _' q, g( b# I5 `- S+ e# j
谢谢!
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