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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 A/ E$ ~* c' k( b- Y
其中有一段如下% d" x' i, {7 x% O
ask turtles with [ infected? = true ] 1 X# m: c; [3 m7 V
我原本以为这句会回传『所有』infected? = true 的 turtle* ^( c- B7 s: J7 \2 a( \
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 ~& r/ G2 Q A: {8 `( d# a有时候回传 1 笔,有时回传 3 笔,是不固定的8 X! b% M" B7 o2 S
回头查语法定义
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agentset with [reporter]
$ x1 C0 `) I7 r- L! h, ?; FTakes 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.
! h! v1 F7 F8 |9 X# A4 N# ]它只说回传 agents satisfying the given condition8 ?# y3 U1 i! x4 P8 ~
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 ? ' Y- L, x) u8 {$ D
; {/ V+ b2 }" a1 @想确定一下( N& N3 q n) G; `+ [
谢谢!
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