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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
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ask turtles with [ infected? = true ] 1 o7 O) S2 S ~! U y
我原本以为这句会回传『所有』infected? = true 的 turtle
* L2 C0 N- `; f7 z) h$ `0 F但看结果似乎不是这样。
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9 c( h8 A5 g. l9 ~8 \! {假设所有符合条件的有 5 笔$ J0 y& Z% A2 Y4 R$ X& a8 \
有时候回传 1 笔,有时回传 3 笔,是不固定的
7 q( s- L8 u; g回头查语法定义* }! I- r* }! o( O- j
with
+ ]! k6 K% X6 n# }' @' s# Z- }5 cagentset with [reporter]& \5 e8 C4 K P
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.
$ _ s' c( ~# F' q9 ~; t$ w' J; h它只说回传 agents satisfying the given condition) b# i4 F6 u, q l6 z8 I/ E
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 ? 5 S& X: l- l; d0 x9 x2 @2 S1 F
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想确定一下$ X9 e5 D5 y# @0 R
谢谢!
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