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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" C$ f. J1 C4 n( I4 [) Z7 l$ M
其中有一段如下1 E6 } b) Q$ W0 O7 B$ ]& P
ask turtles with [ infected? = true ]
3 Z/ L/ c* v# R' M+ U我原本以为这句会回传『所有』infected? = true 的 turtle$ b& Q% t. @- y/ }5 c
但看结果似乎不是这样。" x' ~& h+ v# l+ F1 m* w
* Z" @. Z# D ~: `0 p% C5 C% n假设所有符合条件的有 5 笔2 t2 v' t5 }- x' k8 Q
有时候回传 1 笔,有时回传 3 笔,是不固定的
* I" }, C0 L! R* {8 e" j5 x回头查语法定义' T( e6 W/ ]& L) @1 M& s
with . }0 h6 \/ n1 ?! R/ `1 r# I8 l
agentset with [reporter]
9 n) G! A0 o4 ~+ GTakes 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.7 D' L3 ~' F) V7 B* e) Z
它只说回传 agents satisfying the given condition. W. f( j: W) o4 o# k; j
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 ? 1 D- [" }! s* ?& t, L
( b! W" J+ |2 g, o2 ^( C想确定一下9 {( ~7 g* [1 t$ y
谢谢!& ?8 c4 D; b4 W+ L9 ?* C
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