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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 L9 m: y# G# e$ I( ~
其中有一段如下
6 f u c5 E) H- U' O0 o h+ U1 task turtles with [ infected? = true ]
, D, e$ r1 S3 \! q l# w0 M我原本以为这句会回传『所有』infected? = true 的 turtle0 i7 e) r, d e
但看结果似乎不是这样。! `. b* ?' Y! y# @% e
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假设所有符合条件的有 5 笔$ d) H- ~" }* ?
有时候回传 1 笔,有时回传 3 笔,是不固定的
8 K: v! F% E/ B回头查语法定义& k% _, l1 [3 }' E- U9 T1 b% S
with . C# s" z& Z" v& ]2 s1 M" n
agentset with [reporter]
2 ?6 E! c$ b" k# }$ [' {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 f1 K ?- D% M6 u$ j它只说回传 agents satisfying the given condition
+ h+ L9 [2 H# R4 Y, S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 ? : s5 x/ k. e/ J! o' D& W
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想确定一下
( f- f, ]9 m+ b/ h谢谢!1 T3 }3 ], C3 B8 P8 d% W$ p
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