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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
; M8 Y$ Y5 O1 U% j3 f- r其中有一段如下
) Y9 ]3 |2 L o3 M. q; n! ?3 Qask turtles with [ infected? = true ] ( f ]9 D% d8 i8 Z5 _
我原本以为这句会回传『所有』infected? = true 的 turtle
: ?" W2 a! Q- n% `但看结果似乎不是这样。, Y1 ?2 y# u. E$ I- { F
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假设所有符合条件的有 5 笔5 y: Q" x2 g! t/ l# x+ v
有时候回传 1 笔,有时回传 3 笔,是不固定的4 D3 O$ G1 I7 i# @4 V
回头查语法定义
% T9 d1 X$ ?6 Y6 |- ^3 uwith
" C6 E5 |& X: q2 }- M8 nagentset with [reporter]
# W" J ^* z, [3 E [2 C. uTakes 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.
5 v$ W, ]- o5 n* ~. F- N( {它只说回传 agents satisfying the given condition" C' n: o2 t3 w1 p3 C2 c% V, `
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
1 k% J2 p7 N# z& z3 [; J谢谢!/ `" c5 f% S a- h3 Q w4 ^: h
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