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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" p7 ~, \- |1 q" L( C
其中有一段如下
" s4 I) V5 k6 y/ _ask turtles with [ infected? = true ]
6 I# x5 n$ @( n# C, {* N我原本以为这句会回传『所有』infected? = true 的 turtle3 |% u4 l) f# X
但看结果似乎不是这样。
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: ~4 ^$ D* |7 j假设所有符合条件的有 5 笔7 m! H Y+ K3 X; u4 i& h+ H; M
有时候回传 1 笔，有时回传 3 笔，是不固定的/ J# u! ]- [- K+ p( P3 R6 F3 s3 \
回头查语法定义% e" n+ s1 F/ I5 d3 F8 l
with - a9 w/ A5 P- W+ `- S' o; b
agentset with [reporter]
3 T6 a6 [. b0 x& A1 q' z* 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.
2 \) r& Q1 ~$ n它只说回传 agents satisfying the given condition
/ F9 l0 D# l3 r [, B$ S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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+ H9 x- p4 H J9 K$ w, S想确定一下: U7 S. N" P3 `# J
谢谢！5 {- r: p7 D% |8 @3 i
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楼主
发表于 2013-11-7 00:02:20
