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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
+ }8 w8 G3 m$ F2 I其中有一段如下
# z8 N) g/ i% P8 P4 U+ z, M n5 Jask turtles with [ infected? = true ]
" N$ B7 x$ t! }' m% n5 K1 z4 U我原本以为这句会回传『所有』infected? = true 的 turtle
, `3 t7 p2 V/ c5 G' y! T但看结果似乎不是这样。
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假设所有符合条件的有 5 笔 q' |3 n* F! P4 J( Y
有时候回传 1 笔,有时回传 3 笔,是不固定的: h; v Z- J' e! n2 i
回头查语法定义; \5 O/ Y8 o: p7 K# h5 ^: l
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agentset with [reporter]& z# ?2 f9 Y, e; Y& T1 j
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.2 D: z) v2 `$ J4 Z7 `& Z& k* {: d
它只说回传 agents satisfying the given condition6 B0 Q4 s) q& s5 W0 l
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' c6 e: | R2 K2 \ D {
谢谢!
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