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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- `) |# x) i# Y4 K/ W
其中有一段如下" G! r0 _! s6 l- M0 v
ask turtles with [ infected? = true ]
8 [+ ~( F1 w% W. V% \我原本以为这句会回传『所有』infected? = true 的 turtle
J& h$ a8 Q: w0 X. `但看结果似乎不是这样。! W0 u e: [1 N! z' E- S/ ~
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假设所有符合条件的有 5 笔6 `4 b9 X T; }7 f1 w% b& t
有时候回传 1 笔,有时回传 3 笔,是不固定的$ y" Y2 E9 }% `* l" \- m" |; C7 r/ L
回头查语法定义2 g! `9 e! T6 I- ~$ e% i
with x T5 P9 L3 H( r6 j
agentset with [reporter]
: y8 n1 ` }2 I* z8 MTakes 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.
! Q" ~! J% G* d+ ]; W" U$ I6 }: J它只说回传 agents satisfying the given condition
0 P/ R. S/ K/ b5 j4 Y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
& ]/ P0 Q: Z9 O( B谢谢!
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