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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& q% C0 I6 R2 @
其中有一段如下
2 T( l2 V* S9 p3 B( s# ~ask turtles with [ infected? = true ] 1 l1 e- z# U5 C) E+ K* N' \
我原本以为这句会回传『所有』infected? = true 的 turtle
- d B2 s/ D: ~5 v7 t; {3 c# p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
' A& V' \% W0 a1 Y' S有时候回传 1 笔,有时回传 3 笔,是不固定的
$ v! H/ A; {% Z. |1 U9 Y( g回头查语法定义
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agentset with [reporter]
# y% |8 C' k; @/ L# U! z; wTakes 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.& E# N* R8 ~5 t: |1 i! a/ f5 _ I
它只说回传 agents satisfying the given condition6 p: B8 w6 a6 Y$ C7 j
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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4 v# q! X3 E" {1 r3 B- }4 _想确定一下% t* B8 V2 p+ }( s
谢谢!
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