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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
7 k5 u* {& T) D其中有一段如下
- }8 N0 ^( F4 @+ x! w& }+ {1 I6 y, hask turtles with [ infected? = true ]
0 Y" e, A: }1 c" {% E5 @5 {) q我原本以为这句会回传『所有』infected? = true 的 turtle1 d' _7 n* ^. z' z
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" v- \1 X1 B6 D. N6 t, d* [
有时候回传 1 笔,有时回传 3 笔,是不固定的
) z3 [: |/ h+ P, A3 E0 ]回头查语法定义& \7 }. ]9 v6 m8 X9 e4 B) Q
with
; X6 Z* O3 S% V' Lagentset with [reporter]
+ G+ l* C r. ~2 k( hTakes 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.! ?0 N8 R0 z) J5 J9 c
它只说回传 agents satisfying the given condition3 H7 q0 X* W2 B, t! L" \ y
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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: D& Y, u& K% f* j) G: ^' C- a想确定一下8 u& o; [+ e0 k. A- O/ c
谢谢!
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