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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 ] : `8 u) N- [2 R' V
我原本以为这句会回传『所有』infected? = true 的 turtle
0 J4 W4 j* O, w但看结果似乎不是这样。
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8 X0 u' l e5 O# \. h假设所有符合条件的有 5 笔% w) Z" B+ O' H1 N
有时候回传 1 笔,有时回传 3 笔,是不固定的% H% [- |1 U1 y. h/ p
回头查语法定义
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# ]$ B) W) O: q: ITakes 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 o: s2 U% D7 j2 [1 r' l: H它只说回传 agents satisfying the given condition
" p0 }& h- k4 A7 @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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想确定一下
( s' N- o6 n& l: Q谢谢!
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