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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/ \1 J$ |, f0 u5 Z7 F4 R
其中有一段如下5 i* w4 r' U! c
ask turtles with [ infected? = true ] 2 E8 e+ W' F6 f
我原本以为这句会回传『所有』infected? = true 的 turtle; i* z" h7 ] Q3 p) S
但看结果似乎不是这样。, ^/ ]+ D8 {% M
& K/ k& s! ^' M% `6 x( |: W. |假设所有符合条件的有 5 笔
* u/ Q3 l" M1 i8 Y+ d; F有时候回传 1 笔,有时回传 3 笔,是不固定的
" v# g2 D7 n: k* s回头查语法定义
) W2 g- i" M% ]% B$ fwith # ~, p6 h) R2 o5 ^7 c
agentset with [reporter]
+ `7 C! D6 l. L2 Z$ c) H: rTakes 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.
, P2 m) s) l) h1 Y$ e它只说回传 agents satisfying the given condition
5 n1 M$ u: {. M- `1 [# v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 D' `- |. E N$ X6 K+ \+ h' Y- H% g% x/ y
想确定一下8 a9 ~) {( r. g: u6 \ L0 L
谢谢!8 z( {/ x: z8 [) ^* P) I ^5 L
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