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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
1 V. k* D0 x, j' n其中有一段如下
1 E2 v6 G7 E" i9 ?) m- task turtles with [ infected? = true ] : m& \( n% V6 p8 I+ U
我原本以为这句会回传『所有』infected? = true 的 turtle
1 d: v) Z2 o" [# l4 _# K0 L但看结果似乎不是这样。4 Q$ P/ z% w4 O2 f
# N" z$ U6 {4 n" o+ v2 |假设所有符合条件的有 5 笔3 a) J& h3 h) V' w
有时候回传 1 笔,有时回传 3 笔,是不固定的1 ]+ y: b& n4 s
回头查语法定义
8 e4 J4 y1 f0 R3 R4 U( O. {5 }: Dwith
+ a3 d1 X# L. P3 ?: Q3 Cagentset with [reporter]" _8 X. S7 G! V9 T
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.
4 r/ Q$ y% r0 ^9 g8 s1 t. u它只说回传 agents satisfying the given condition
5 a- Q. ?1 I# v- Z, ?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 ? 3 w Z9 h6 {5 |/ d% X9 D
" B7 p* S* w, A8 w
想确定一下
- s( S- t7 J) @$ ^% M. ]谢谢!
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