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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
/ Z; T1 q& ?8 Q- O s$ x% |其中有一段如下
- }( A4 F+ y; T4 vask turtles with [ infected? = true ] * G; ], E: ~* C4 _! E& g/ ^1 X
我原本以为这句会回传『所有』infected? = true 的 turtle
) v# t v. ~& r% c: n: q$ P1 I但看结果似乎不是这样。5 h0 J' v7 a! j: F k; D+ n
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假设所有符合条件的有 5 笔
& F C4 q* p; K% s) K" N有时候回传 1 笔,有时回传 3 笔,是不固定的
! Q. u) i9 f2 B J. [ \回头查语法定义
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agentset with [reporter]0 d( K( d8 o' ]8 {
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 O p- g. q% L
它只说回传 agents satisfying the given condition6 h) R5 V& v7 C; S2 [" S. D3 D
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 ? 6 i( U' w& r3 g2 O% w) `
0 f/ U2 Y0 |& }想确定一下
5 _9 C- t' T% \ G1 P. b6 Z谢谢!
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