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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. B' |" M8 s( `
其中有一段如下
" ]9 C1 y- s4 D4 Y4 X, ~ask turtles with [ infected? = true ]
1 U/ K5 s, X, o/ m/ f. g我原本以为这句会回传『所有』infected? = true 的 turtle
/ y4 I$ b1 D/ c8 f- ?$ A( W但看结果似乎不是这样。4 t& W6 I* D; z
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假设所有符合条件的有 5 笔$ `4 P: H, x# m8 b! v6 x- m/ v2 I x: X; C
有时候回传 1 笔,有时回传 3 笔,是不固定的: W; N& L" h$ W
回头查语法定义
1 d+ C# k$ j7 B9 dwith
& L( {/ g4 l- r- @8 z; L' zagentset with [reporter]" k' {& u$ u& w
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.
6 B' t8 c6 w% t它只说回传 agents satisfying the given condition0 h }) r' {9 T7 d$ [% e- t
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 ? - a4 \# q+ t) D) B
& b- r" s' S# K# ]3 F想确定一下
! o, z0 c$ q9 W谢谢!
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