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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 [& r: l2 c: E: `
其中有一段如下2 ]6 A @! S9 U
ask turtles with [ infected? = true ] - |) _+ e" l4 a7 t, L
我原本以为这句会回传『所有』infected? = true 的 turtle$ e& z- ]% Z8 E( G/ K/ a4 ?9 W
但看结果似乎不是这样。
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- P* v4 X1 t0 R/ [0 H( Q$ X, \0 \假设所有符合条件的有 5 笔7 a! I# h7 X/ W% i. k! E5 M' x
有时候回传 1 笔,有时回传 3 笔,是不固定的6 t/ A- v& G# p' C$ [% K# ^
回头查语法定义
8 i( F; q* K: b3 Z/ W' }with
8 y' O, X( q, H. i* M% Pagentset with [reporter]' r/ }" {! E& T3 h$ d
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.; f+ K# j8 A; U
它只说回传 agents satisfying the given condition
9 B4 t4 Y% q l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
4 Q' q+ N' ^3 ^谢谢! }$ ~: q+ `) j' K- r
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