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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
8 w' C( B9 i5 }, p; Y其中有一段如下+ {6 V1 h, ^* G+ F' M& W" `
ask turtles with [ infected? = true ] 8 I( T$ ?+ K j% `
我原本以为这句会回传『所有』infected? = true 的 turtle
5 m5 l$ S L3 [9 \$ E但看结果似乎不是这样。5 K9 N; p. @2 Z5 ^! s8 M& @
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假设所有符合条件的有 5 笔, |4 W& Y" @% I9 R0 w
有时候回传 1 笔,有时回传 3 笔,是不固定的
% f+ f( i; a& g, e回头查语法定义
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agentset with [reporter]
3 H4 ]) ?) d! x! j! i& L _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.! v9 v( a( ~1 ~* O7 I
它只说回传 agents satisfying the given condition
, N; F3 ?; k1 I& f/ h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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( R; z) ?3 }5 A% I k8 C想确定一下, D7 V- d2 e8 w' l8 C& B: K) r
谢谢!
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