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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! @1 Q. z5 T7 R c7 x8 `
其中有一段如下3 T( D1 Y3 U- F9 X) n
ask turtles with [ infected? = true ] # l# F% i3 R8 {6 `# ?/ k
我原本以为这句会回传『所有』infected? = true 的 turtle# l; a( S- |( f) H3 Q
但看结果似乎不是这样。5 g ~( d: f$ c* d
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假设所有符合条件的有 5 笔: Z+ e7 X) |, b8 v5 f
有时候回传 1 笔,有时回传 3 笔,是不固定的
% t: W0 A) B _回头查语法定义- f" B: t3 \, a( v8 K( a
with ( b% A4 ?3 ^. C3 G* Q' M
agentset with [reporter]
6 ?3 p6 U7 R* p) F; A* s( nTakes 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. z+ t$ K& o) E- W& t
它只说回传 agents satisfying the given condition2 D8 a9 H$ }9 S, B- B4 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 ? 0 j1 L; |" G' v" M
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想确定一下
% {2 x3 m" e& H) w" M6 F谢谢!* z7 M8 Q0 Y0 u1 }7 s
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