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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" i% Z" u2 j5 v9 D7 r8 T
其中有一段如下
+ r: @9 ]9 U: j0 n# Eask turtles with [ infected? = true ]
! ?: f# Q4 X9 }4 H+ d) C我原本以为这句会回传『所有』infected? = true 的 turtle2 k; Q1 n3 i( O
但看结果似乎不是这样。( P5 \, I8 ?. l' p, u+ P, j* k' ?
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假设所有符合条件的有 5 笔
( Z/ n4 k2 O4 q! v1 M& @9 x有时候回传 1 笔,有时回传 3 笔,是不固定的8 F V% Y6 x2 M, ]4 R
回头查语法定义
! y1 f! y$ k) l4 }with 4 s P' C b/ R
agentset with [reporter]
/ S5 s; |3 H: S7 eTakes 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.- g5 {! f7 o2 P9 U
它只说回传 agents satisfying the given condition
/ y$ A/ N. i/ X) ~' g F' b z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 ? . W; Y1 f/ t+ o" r
4 _5 N" ~6 S, ?1 H想确定一下
0 ], g! T0 c6 v" q9 Z- s谢谢!( i- S: t2 P6 d1 a }, n% f v/ I
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