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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
: i' W5 v4 ]6 ]+ g" D# b其中有一段如下
$ m4 p" d1 b; b! d* X! wask turtles with [ infected? = true ]
% S* |: [8 V: m6 x4 O- ^; _我原本以为这句会回传『所有』infected? = true 的 turtle
2 w8 d; F! \) \9 n _但看结果似乎不是这样。, g7 U0 K1 z" o
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假设所有符合条件的有 5 笔
& O1 x. T( h& u+ ^/ c# Q6 q/ a有时候回传 1 笔,有时回传 3 笔,是不固定的: I1 q0 |5 C. G8 b0 Y3 Z) k% B! X; d7 m
回头查语法定义* }9 `4 [% H G+ |) P6 T; D8 M$ ]7 R
with
2 W2 W! q$ F R9 \agentset with [reporter], u4 W5 \/ ?9 K+ o
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 L- N* m5 o( M* }9 u5 ^' g4 Y. T
它只说回传 agents satisfying the given condition6 n7 S# ?3 B2 h9 k# B+ G: E
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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: {5 b+ ]% b2 x/ w4 B( S1 h; f想确定一下
( n4 D9 @; B/ y; j# m- B) v8 m9 E谢谢!
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