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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* c- d! I+ l* F' p9 s+ x% ?" Z0 o4 x8 `
其中有一段如下" ?* ^1 C) ]+ m9 m/ D
ask turtles with [ infected? = true ] : M. p, M" d8 t6 E8 x: z7 q
我原本以为这句会回传『所有』infected? = true 的 turtle
- E( `( ]; @, z7 R5 B& N但看结果似乎不是这样。7 v7 k& c9 M3 K
. }( c$ \1 A9 p$ z% h v假设所有符合条件的有 5 笔
; M! {1 o6 i+ Z0 l4 H4 W: z有时候回传 1 笔,有时回传 3 笔,是不固定的
: y3 Q- ^! h3 G3 w" Y8 C回头查语法定义
4 k" u. I! {3 R% ]7 Y) L8 xwith
, g5 p% v8 }) |0 ]agentset with [reporter]
7 d r* i0 c; p H# N; 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. K* n$ [" W, i1 l$ L6 X& C5 U! v& F
它只说回传 agents satisfying the given condition
7 v* O b( @8 X- q- ?8 ]! p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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5 b, B- P& `7 k- c% {想确定一下( L; k, i. f6 k+ _ C8 S" x
谢谢!9 p% D W4 A" f. ]% S e" L
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