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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: x% R* Q1 X v& K( Z
其中有一段如下1 b: W# r' k$ |8 G
ask turtles with [ infected? = true ]
5 q. |- J: }2 e1 x1 x# j* [9 N: x我原本以为这句会回传『所有』infected? = true 的 turtle% i# H) D0 b0 u, K& r
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
; m( K! V* W& L- y) u有时候回传 1 笔,有时回传 3 笔,是不固定的0 R, l( c" T9 W
回头查语法定义8 g: a5 Z5 s! t
with
" D3 V6 Z+ E! B: y; Magentset with [reporter]
9 K$ Q# ^# ~# JTakes 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.' r2 v0 G1 P6 T: T5 Z; x! W( s
它只说回传 agents satisfying the given condition( E6 j1 J$ d$ r0 ?# } E- u
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
5 a, P8 w W; r' d3 ^2 s4 U6 k谢谢!- E4 ^5 w- J$ N2 r
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