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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% o4 Y; \( I# i4 s' F( l其中有一段如下
/ _* N. [6 @5 W2 L$ g! |ask turtles with [ infected? = true ] 2 B* O) P8 I7 s" R8 z1 y, \
我原本以为这句会回传『所有』infected? = true 的 turtle
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假设所有符合条件的有 5 笔
8 v- \1 l- T8 d' }* O3 s" _有时候回传 1 笔,有时回传 3 笔,是不固定的' L: {4 z! w6 U8 B
回头查语法定义
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3 I; V; _% U& B3 J6 @1 Vagentset with [reporter]
* l0 s2 M$ M" Z }, X& HTakes 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.
) @. \; q5 \( B8 t' A5 b8 s9 q它只说回传 agents satisfying the given condition
- h4 }" Z0 {! N6 Y) l) N9 c& 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 ? $ \' W5 s6 t5 B
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想确定一下
% c5 l5 m% ?: w' \& [谢谢!
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