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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% \2 }3 \) C* p: H% ]
其中有一段如下
; }- R* ^, y4 Mask turtles with [ infected? = true ]
) _' M# K+ a: i% d我原本以为这句会回传『所有』infected? = true 的 turtle( K" C5 |6 X/ Z' T: z6 h& }0 c
但看结果似乎不是这样。1 a( e& I% ^! @. E
: d. l* z2 f3 f假设所有符合条件的有 5 笔
4 I$ K1 l2 P% M& Y0 j! o7 b3 ?有时候回传 1 笔,有时回传 3 笔,是不固定的
8 G: e0 z; b! A6 @$ V% {, {7 X" Y: p回头查语法定义
1 a+ v2 T# {# f$ o2 rwith ! J, V# i, b# Z+ U: c# G
agentset with [reporter]6 W1 {9 {6 i2 t2 B+ \5 N
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.6 g$ V% p. W% h3 V
它只说回传 agents satisfying the given condition1 u/ X y! W) K! E5 ^/ \ 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 ? , Q- }# {, |: ~, r" f
. q* R& g" K o3 q- H! L想确定一下( I7 t( t$ v% b; S; b# g1 w9 K
谢谢!
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