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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
4 A9 F$ S% ?) S! U其中有一段如下8 X" y+ V0 a$ N& X' x" p
ask turtles with [ infected? = true ] % _8 I7 `- r) R' Y8 E* H0 e
我原本以为这句会回传『所有』infected? = true 的 turtle3 b- x1 J0 k3 q& p2 Z% X
但看结果似乎不是这样。
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假设所有符合条件的有 5 笔- q7 ?7 T3 J" E2 P( V$ }4 i
有时候回传 1 笔,有时回传 3 笔,是不固定的9 K# _6 m8 I; r" r
回头查语法定义& E) |: H; P/ T- `# c8 {
with
* U+ T: U! ?! j* V' s `# ]3 Z9 ]agentset with [reporter]7 A: D! d: U+ d4 p% i$ [% ~5 i
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./ O7 m; f2 w9 G' v6 v3 d1 V8 U
它只说回传 agents satisfying the given condition
- h o* _" N* [# }4 O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 ? ' P8 I# P: W9 F, J* y/ t
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想确定一下
7 D, f3 K& Y8 p4 E) K谢谢!
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