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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% N- ~; i. A5 c" j% r2 Y
其中有一段如下1 s( U/ a+ [6 L2 }. b, j
ask turtles with [ infected? = true ]
/ u; j1 y, B. g( d) w9 N+ n% _我原本以为这句会回传『所有』infected? = true 的 turtle
+ ?6 u0 F& o" o; y3 A$ h" ]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
* H# w3 I8 X: [; r有时候回传 1 笔,有时回传 3 笔,是不固定的
5 B! w" Y/ s; s8 I1 i+ |6 K回头查语法定义
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agentset with [reporter]* g9 {% m4 ?5 [2 y3 y& B0 x
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.
% u$ J: @& i' T+ P( H5 ?它只说回传 agents satisfying the given condition! y8 G( f% o h1 X
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
: `/ L9 L2 m% G/ j谢谢!
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