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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7 Z7 @$ L6 f* a
其中有一段如下
% [. j. |1 h* Wask turtles with [ infected? = true ]
+ X4 O' l' s9 O W/ s+ `我原本以为这句会回传『所有』infected? = true 的 turtle& N/ t3 I1 f* z
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
4 m0 O: [& }+ z% T: F0 w, F有时候回传 1 笔,有时回传 3 笔,是不固定的7 r- X2 ^ C& E% `1 j
回头查语法定义6 E* v2 r3 Q* i; S& m. O
with & ^) S' v |8 e# Z s; x! o/ N
agentset with [reporter]# G2 Z$ Z% ]8 L, k
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.
) S4 ~& G. f0 z它只说回传 agents satisfying the given condition3 j2 G$ E4 C6 p5 H o' `, p s+ {
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 ? ; {/ F/ {/ T! D, S
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想确定一下
+ w1 h, @: ^& E谢谢!
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