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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7 g1 j% ~ \+ \' V
其中有一段如下
2 G7 T. h' C! C6 C5 d. J0 Gask turtles with [ infected? = true ]
, Z9 o$ N0 }/ n( e1 d/ U我原本以为这句会回传『所有』infected? = true 的 turtle
* K; W0 o8 |( R+ D' R, J但看结果似乎不是这样。# F) w4 j [5 y. I5 y
3 L# E/ \* q- U8 |8 e5 z1 K- X假设所有符合条件的有 5 笔! n, [9 _* g; B: Y8 M
有时候回传 1 笔，有时回传 3 笔，是不固定的 s; }9 j. r% J( u7 X% x2 r
回头查语法定义/ i- N& S) q9 h5 f% U" u/ p9 P! }
with
' L+ x7 |6 Z% r! h; C% d* ^9 tagentset with [reporter]
/ Q0 G# L0 t# q, YTakes 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.
1 m4 \7 f1 f- K! Z, [; z1 a1 ]它只说回传 agents satisfying the given condition
" _; E+ Y/ |, S ~6 ~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 ? & j n9 B0 y* _2 p( [) @! x
; u/ D+ P4 U) z$ U V想确定一下* R/ r) Q# n B+ R: _5 Z
谢谢！* g2 e; ]% g7 {7 {9 X
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楼主
发表于 2013-11-7 00:02:20
