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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
+ j7 }2 M( c/ A5 ]0 L其中有一段如下
0 G& j7 Y. y E9 u; ]7 f* Uask turtles with [ infected? = true ] # [# c8 k L# {1 e0 X; V
我原本以为这句会回传『所有』infected? = true 的 turtle
( ^$ [" C" v/ V. M3 I0 ]+ l; d但看结果似乎不是这样。! z( n* i0 f6 y
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假设所有符合条件的有 5 笔' o! Q& ?# y: i3 W, {9 c& d; l
有时候回传 1 笔,有时回传 3 笔,是不固定的# Z+ s: k$ R. m% [% \
回头查语法定义
7 m5 {) N+ n) fwith # g( x. R! \- N8 o d
agentset with [reporter]4 D% v/ \. }. A
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.
, z: O% C& ~2 Y6 D8 Z它只说回传 agents satisfying the given condition
" M( Z9 U/ _0 d4 ^, 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 ? 2 d+ J2 d3 f9 c" e2 l/ A2 _( J
- q9 a5 L* U* e G: H$ i* d+ L" q想确定一下
8 F5 l$ ]0 U/ o( V- B谢谢!0 ?. P5 I3 N6 B- m. V5 P, U1 T/ A8 Y' `
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