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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
8 d, }1 y6 ?. v4 I y- C; x其中有一段如下
$ z" h T" N4 E5 u1 u2 ]" c4 Lask turtles with [ infected? = true ] 2 }3 c9 I* B' q
我原本以为这句会回传『所有』infected? = true 的 turtle. n; q, y5 K' L5 W
但看结果似乎不是这样。+ V4 m# S% t; l: |
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假设所有符合条件的有 5 笔0 |6 Q& `7 ?: G; Q
有时候回传 1 笔,有时回传 3 笔,是不固定的0 h6 w" f3 W! |: e
回头查语法定义
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agentset with [reporter]4 g- x' i* d# ?4 L- o7 z o7 w
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.5 K1 C9 J# M+ P) @/ ~$ s6 @/ {
它只说回传 agents satisfying the given condition
4 q6 z% f R; L9 l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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: A9 R9 c8 |7 E6 l3 x( Q想确定一下( z* Q, D8 \( W2 h5 N
谢谢!
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