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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, M+ U- W% r; g' E2 F6 l5 e1 _
其中有一段如下! h" B5 r7 R$ o2 f
ask turtles with [ infected? = true ]
# p9 G1 }0 T/ I9 |7 E9 t7 M7 s% k我原本以为这句会回传『所有』infected? = true 的 turtle! W' l& j; M q( @
但看结果似乎不是这样。. B: b5 `# u: c; K k1 b7 m1 ]4 r
$ ?* L6 d/ c3 n; M& m5 t% S假设所有符合条件的有 5 笔
8 @8 y5 u4 v: [有时候回传 1 笔,有时回传 3 笔,是不固定的# X% K- ^* v3 }- e" J
回头查语法定义1 t3 S. N* U/ Y( D7 x
with 4 Z8 x( ~8 X4 `; P2 \$ D3 q$ ~
agentset with [reporter]( m9 R8 P( O7 H& W9 y& i
Takes 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.
8 \# g _% [8 w% O它只说回传 agents satisfying the given condition/ n- c8 c% I) q% y1 N" F
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 ? + L+ I! H- T# }& A. L: }$ U4 n
4 L3 t+ t9 P" n0 I. f! s想确定一下9 D+ u- x; v5 p- F4 l2 s6 [2 p
谢谢!
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