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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
9 L$ k+ t! _* Q; ]其中有一段如下5 C" K4 m5 e) |
ask turtles with [ infected? = true ] ( [2 Q6 ?( x% |9 y# W
我原本以为这句会回传『所有』infected? = true 的 turtle
7 A& }2 O0 o1 t9 k2 E但看结果似乎不是这样。1 a% _8 i& K/ m- L
2 r# S' b2 C3 b# z假设所有符合条件的有 5 笔
3 Y5 Z4 X. F8 R/ Y有时候回传 1 笔,有时回传 3 笔,是不固定的
( B8 h# h/ C# D3 [0 I! w X回头查语法定义
: k3 N) N$ b, q8 nwith ! k$ [6 w: A- k8 c/ O- }, A7 \
agentset with [reporter]
S4 D$ L- y" @! ~) iTakes 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.- Y( X6 Q y: o! A, {/ [. O! K
它只说回传 agents satisfying the given condition
1 V9 A+ F3 B$ [, y' A: Z# O. R* \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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想确定一下- v; Z, l) ^) X& V% r& d" Z
谢谢!5 ?! i5 R- e0 {: r
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