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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! @0 s( d& m, q- ]
其中有一段如下
9 t' Q1 M! D; `8 yask turtles with [ infected? = true ] " f$ Q7 I9 E8 s
我原本以为这句会回传『所有』infected? = true 的 turtle" F4 _. x+ h/ z- s4 x$ Z2 y
但看结果似乎不是这样。: F' _$ ~. [" s5 `
' Y& @$ ~5 ^* g; w8 U( J* d假设所有符合条件的有 5 笔
6 E& T2 o& e% L8 U8 q8 v; f# K有时候回传 1 笔,有时回传 3 笔,是不固定的3 U. T; l* S2 c: g4 a0 @
回头查语法定义: _- X/ ] s; V
with
8 P+ z* ~; T! K7 Wagentset with [reporter]. Q7 ?& E* ^7 i+ C7 Z! `& Q/ L
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.4 d+ s1 f9 l) O" \1 M
它只说回传 agents satisfying the given condition& p- Z7 i5 n0 ~. P8 l; 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 ? 9 n6 g/ T5 U$ p: D
. [3 m+ h8 E2 n0 j* h2 V想确定一下
3 O) \- g$ d2 W; v+ P, m3 f: g5 e+ m, f谢谢!
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